As filed with the Securities and Exchange Commission on October 19, 2006
                                                 Registration No. 333-
================================================================================

                                  UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM S-1
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

                            EXLSERVICE HOLDINGS, INC.

(EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER) DELAWARE 541990 82-0572194 (STATE OR OTHER JURISDICTION OF (PRIMARY STANDARD INDUSTRIAL (IRS EMPLOYER INCORPORATION OR ORGANIZATION) CLASSIFICATION CODE NUMBER) IDENTIFICATION NUMBER)
350 PARK AVENUE NEW YORK, NEW YORK 10022 (212) 277-7100 (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE, OF REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES) VIKRAM TALWAR CHIEF EXECUTIVE OFFICER EXLSERVICE HOLDINGS, INC. 350 PARK AVENUE NEW YORK, NEW YORK 10022 (212) 277-7100 (NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE, OF AGENT FOR SERVICE)
COPIES TO: JOHN C. KENNEDY, ESQ. AMIT SHASHANK JANET L. FISHER, ESQ. PAUL, WEISS, RIFKIND, WHARTON & GARRISON LLP GENERAL COUNSEL AND VICE PRESIDENT CLEARY GOTTLIEB STEEN & HAMILTON LLP 1285 AVENUE OF THE AMERICAS EXLSERVICE HOLDINGS, INC. ONE LIBERTY PLAZA NEW YORK, NEW YORK 10019-6064 350 PARK AVENUE NEW YORK, NEW YORK 10006 (212) 373-3000 NEW YORK, NEW YORK 10022 (212) 225-2000 FAX: (212) 757-3990 (212) 277-7100
______________________________ APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE OF THE SECURITIES TO THE PUBLIC: AS SOON AS PRACTICABLE AFTER THIS REGISTRATION STATEMENT BECOMES EFFECTIVE. If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, check the following box. [_] If this form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering: [X] 333-121001 If this form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering: [_] If this form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering: [_] If delivery of the prospectus is expected to be made pursuant to Rule 434, please check the following box.[_] CALCULATION OF REGISTRATION FEE ================================================================================ PROPOSED MAXIMUM AMOUNT OF TITLE OF EACH CLASS OF AGGREGATE OFFERING REGISTRATION SECURITIES TO BE REGISTERED PRICE (1)(2) FEE - -------------------------------------------------------------------------------- Common Stock, $0.001 par value per share $8,625,000 $923 ================================================================================ (1) Includes shares which may be purchased to cover over-allotments, if any. The $8,625,000 proposed maximum aggregate offering price is in addition to the $69,000,000 proposed maximum aggregate offering price registered pursuant to the Registrant's Registration Statement on Form S-1 (File No. 333-121001). A registration fee was previously paid in connection with that Registration Statement. (2) Estimated solely for the purpose of calculating the registration fee pursuant to Rule 457(o). THIS REGISTRATION STATEMENT SHALL BECOME EFFECTIVE UPON FILING WITH THE SECURITIES AND EXCHANGE COMMISSION IN ACCORDANCE WITH RULE 462(B) UNDER THE SECURITIES ACT OF 1933, AS AMENDED. ================================================================================ 2 EXPLANATORY NOTE This registration statement is being filed pursuant to Rule 462(b) under the Securities Act of 1933, as amended ("Rule 462(b)"), and includes the registration statement facing page, this page, the signature page, an exhibit index and exhibits. Pursuant to Rule 462(b), the contents of the registration statement on Form S-1 (File No. 333-121001) of ExlService Holdings, Inc. (the "Registrant"), including the exhibits thereto, are incorporated by reference into this registration statement. The Registrant hereby certifies that it (i) has instructed its bank to transmit to the Securities and Exchange Commission (the "Commission") the filing fee set forth on the cover page of this Registration Statement by a wire transfer of such amount to the Commission's account at Mellon Bank as soon as practicable (but no later than the close of business on October 20, 2006), (ii) will not revoke such instructions, (iii) has sufficient funds in the relevant account to cover the amount of such filing fee and (iv) will confirm receipt of such instructions by its bank during the bank's regular business hours no later than October 20, 2006. 3 PART II INFORMATION NOT REQUIRED IN PROSPECTUS ITEM 16. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES. All exhibits filed with or incorporated by reference in Registration Statement No. 333-121001 are incorporated by reference into, and shall be deemed to be a part of, this registration statement, except for the following, which are filed herewith. Exhibit Number Description of Exhibit - ------ ---------------------- 5.1 Opinion of Paul, Weiss, Rifkind, Wharton & Garrison LLP as to the legality of the shares registered hereunder. 23.1 Consent of Ernst & Young LLP. 23.2 Consent of Russell Bedford Stefanou Mirchandani LLP. 23.3 Consent of Paul, Weiss, Rifkind, Wharton & Garrison LLP (included in Exhibit 5.1). 24.1 Powers of Attorney (incorporated by reference to Exhibit 24.1 to the Registration Statement on Form S-1 of ExlService Holdings, Inc. (Registration No. 333-121001)). 4 SIGNATURES Pursuant to the requirements of the Securities Act of 1933, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of New York, State of New York, on October 19, 2006. EXLSERVICE HOLDINGS, INC. By: /s/ Vikram Talwar ---------------------------- Name: Vikram Talwar Title: Chief Executive Officer and Director Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the following capacities on the 19th day of October, 2006. SIGNATURE TITLE - ---------------------------------------- ------------------------------------ * - ---------------------------------------- Chief Executive Officer and Director VIKRAM TALWAR (Principal Executive Officer) * - ---------------------------------------- President, Chief Financial Officer ROHIT KAPOOR and Director (Principal Financial and Accounting Officer) * - ---------------------------------------- STEVEN B. GRUBER Chairman of the Board * - ---------------------------------------- BRADFORD E. BERNSTEIN Director * - ---------------------------------------- EDWARD V. DARDANI Director * - ---------------------------------------- JAMES C. HALE, III Director * - ---------------------------------------- DAVID B. KELSO Director * - ---------------------------------------- DR. MOHANBIR SAWHNEY Director * - ---------------------------------------- GAREN K. STAGLIN Director *By: /s/ Vikram Talwar -------------------------------- Vikram Talwar, Attorney in Fact 5 INDEX TO EXHIBITS Exhibit Number Description of Exhibit - ------ ---------------------- 5.1 Opinion of Paul, Weiss, Rifkind, Wharton & Garrison LLP as to the legality of the shares registered hereunder. 23.1 Consent of Ernst & Young LLP. 23.2 Consent of Russell Bedford Stefanou Mirchandani LLP. 23.3 Consent of Paul, Weiss, Rifkind, Wharton & Garrison LLP (included in Exhibit 5.1). 24.1 Powers of Attorney (incorporated by reference to Exhibit 24.1 to the Registration Statement on Form S-1 of ExlService Holdings, Inc. (Registration No. 333-121001)).
                                                                    EXHIBIT 5.1
                                                                    -----------





                                           October 19, 2006



ExlService Holdings, Inc.
350 Park Avenue
New York, New York  10022

                       Registration Statement on Form S-1
                       ----------------------------------

Ladies and Gentlemen:

         In  connection  with  the  Registration  Statement  on Form  S-1  (the
"Registration Statement"), of ExlService Holdings, Inc., a Delaware corporation
(the  "Company"),  filed  today with the  Securities  and  Exchange  Commission
pursuant to the Securities  Act of 1933, as amended (the "Act"),  and the rules
and  regulations  thereunder  (the  "Rules"),  you have asked us to furnish our
opinion  as to the  legality  of the  securities  being  registered  under  the
Registration Statement. The Registration Statement and the related registration
statement  (Registration No.  333-121001)  relate to the registration under the
Act of up to 5,750,000 shares (the "Shares") of the Company's common stock, par
value $0.001 per share (the "Common Stock"), that may be offered


ExlService Holdings, Inc.                                                     2


by the Company  (including  shares issuable by the Company upon exercise of the
underwriters' over-allotment option).

         In connection  with the  furnishing of this opinion,  we have examined
originals or copies certified or otherwise  identified to our satisfaction,  of
the following documents  (collectively,  the "Documents"):

         1.       the Registration Statement;  and

         2.       the form of the  Underwriting  Agreement  (the  "Underwriting
Agreement") relating to the offering.

         In  addition,  we have  examined  (i) such  corporate  records  of the
Company that we have  considered  appropriate,  including a copy of the amended
and restated  certificate  of  incorporation  and by-laws,  as amended,  of the
Company,  certified by the Company as in effect on the date of this letter, and
copies of resolutions of the board of directors of the Company  relating to the
issuance  of  the  Shares,  certified  by  the  Company  and  (ii)  such  other
certificates, agreements and documents that we deemed relevant and necessary as
a basis for our opinion  expressed  below. We have also relied upon the factual
matters contained in the  representations and warranties of the Company made in
the Documents and upon certificates of public officials and the officers of the
Company.

         In our  examination  of the  documents  referred  to  above,  we  have
assumed, without independent investigation,  the genuineness of all signatures,
the legal  capacity of all  individuals  who have executed any of the documents
reviewed by us, the authenticity of all documents submitted to us as originals,
the conformity to the originals of all documents  submitted to us as certified,
photostatic,  reproduced or conformed  copies of


ExlService Holdings, Inc.                                                     3


valid  existing  agreements or other  documents,  the  authenticity  of all the
latter  documents  and that the  statements  regarding  matters  of fact in the
certificates,  records,  agreements,  instruments  and  documents  that we have
examined are accurate and  complete.  We have also assumed that the amended and
restated  certificate  of  incorporation  and  by-laws of the  Company  will be
validly  adopted in the forms  reviewed by us and that the amended and restated
certificate of incorporation  will be duly filed with the Secretary of State of
the State of Delaware.

         Based  upon  the  above,  and  subject  to  the  stated   assumptions,
exceptions and qualifications,  we are of the opinion that the Shares have been
duly  authorized by all necessary  corporate  action on the part of the Company
and, when issued,  delivered and paid for as contemplated  in the  Registration
Statement and in accordance with the terms of the Underwriting  Agreement,  the
Shares will be validly issued, fully paid and non-assessable.

         The opinion expressed above is limited to the General  Corporation Law
of the State of  Delaware.  Our  opinion is rendered  only with  respect to the
laws, and the rules, regulations, orders and applicable judicial and regulatory
determinations under those laws, that are currently in effect.

         We  hereby  consent  to use  of  this  opinion  as an  exhibit  to the
Registration  Statement  and to the use of our name  under the  heading  "Legal
Matters"  contained  in  the  prospectus   incorporated  by  reference  in  the
Registration Statement. In giving this consent, we do not thereby admit that we
come within the category of persons whose consent is required by the Act or the
Rules.



ExlService Holdings, Inc.                                                     4



                                      Very truly yours,


                           /s/ Paul, Weiss, Rifkind, Wharton & Garrison LLP


                           PAUL, WEISS, RIFKIND, WHARTON & GARRISON LLP


                                                                    EXHIBIT 23.1
                                                                    ------------




CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


      We consent to the incorporation by reference in the Registration Statement
(Form S-1) dated October 19, 2006 of our reports dated February 15, 2005 with
respect to the consolidated financial statements and schedule of ExlService
Holdings, Inc. included in Amendment No. 6 to the Registration Statement (Form
S-1 No. 333-121001) and to the reference therein to our firm under the caption
"Experts."

                                                /s/ ERNST & YOUNG LLP
                                                ------------------------

New York, New York
October 19, 2006


                                                                    EXHIBIT 23.2
                                                                    ------------


            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM



To: Inductis, Inc.

         As independent  certified public accountants,  we hereby consent to the
incorporation  by  reference  in the  Registration  Statement  (Form  S-1) dated
October 19, 2006 of our report  dated May 22, 2006 , except for note 23(b) which
is dated June 18, 2006, with respect to the consolidated financial statements of
Inductis,  Inc. included in Amendment No. 6 to the Registration  Statement (Form
S-1 No.  333-121001) and to the reference  therein to our firm under the caption
"Experts."



                  /s/ Russell Bedford Stefanou Mirchandani LLP
                  --------------------------------------------
                    Russell Bedford Stefanou Mirchandani LLP



New York, New York
October 19, 2006