What is the last rank required through the GATE for an M.Tech in CS in NSIT/DTU, and how are the packages?

Here is the 2022 GATE cutoff for DTU (General category):

You will have to get at least rank 2000 for DTU and 3000 for NSUT Delhi.

Both DTU and NSUT Delhi offer plenty of opportunities for their students in this field. 

Qualcomm, SanDisk, Samsung R&D, Mobikwik, Amazon, American Express, Royal Bank of Scotland, Tejas networks, IBM, Amazon, AWS, and Morgan Stanley are some of the MNCs that usually prefer to recruit DTU students. These companies offer a package of around 6-8 LPA. You may also be selected by Google, Microsoft, Apple, Goldman Sachs, Flipkart, Codenation, and Facebook Germany & Ireland.

For placements, DTU is comparable to the top 7 IITs and top 3 NITs. NSUT Delhi is a great college but lags a bit in comparison to DTU in terms of placements. If you are going to study at DTU, choose your specialization according to this preference order- CSE> SWE> ISY. NSUT Delhi offers an M.Tech in CSE, Information Security, and AI.

These are some details about an M.Tech in CSE and related courses at DTU and NSUT Delhi.