Hello Abhishek Nahata. Thanks for contacting Careers360 and we hope we will be able to answer your query. 

Note that GATE exam is the most important exam after JEE to get admission into the IITs. So, obviously there should be a clarity on your part as to which exam you need to write. 

So, to be honest, to take admission in the postgraduate course of Manufacturing Engineering, you need to give the GATE exam for Mechanical Engineering.

We, at Careers360, have written this article for the GATE cutoff at the IITs as is given below:

• https://engineering.careers360.com/articles/gate-cutoff-for-me

Hope this helps you and all the best!