<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2020 Workiva-->
<!--r:046b957a-25d5-4751-a68f-346664eae420,g:20fe9c69-931f-465c-acb8-a705d5746415-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.exlservice.com/role/CoverCover" xlink:type="simple" xlink:href="exls-20201029.xsd#CoverCover"/>
  <link:calculationLink xlink:role="http://www.exlservice.com/role/CoverCover" xlink:type="extended"/>
</link:linkbase>