Cheers, Neha. If you're new to TDI then here is a link for learning it: https://ibm.biz/BdjiM6
First step is to make sure you're running a later fix pack. You will find details on this here: http://www.tdi-users.org
Then work through the Getting Started tutorial exercises. This will give you a good foundation after a couple of hours work. I wrote this years ago for the first IBM version of Integrator after we got acquired back in 2002, and have been updating it over the years through new versions and rebranding. The versions for TDI 7.1.1 and SDI 7.2 are pretty much interchangeable so grab what you can.
Regarding using the JMS Connector with AWS SQS, here is a link:
The trick with JMS is the script to initialise the connection. There are a few queue technologies supported out-of-the-box, but SQS is not among them. If you have a access to a working instance of SQS then I'd be happy to experiment with you some time. Just reach out via Eddie at agilitar dot com.