Which reference books will you recommend for GATE mathematics?

Yes, with 50 marks in the GATE exam candidates can get admission to few IITs and NITs as well. 

For top NITs, the safe score in GATE will be roughly around 650 - 750 scores. However, it also depends on other factors, such as category, past year trends, etc.

Here are some colleges that offer M.Tech admission in CSE round -

• Guru Ghasidas Vishwavidyalaya, Bilaspur
• Central University of Rajasthan
• Sant Longowal Institute of Engineering and Technology
• Central Institute of Technology, Kokrajhar
• Central University of Rajasthan
• Guru Ghasidas Vishwavidyalaya, Bilaspur

The GATE CCMT cutoff for CSE (round 1) at NIT Delhi can be checked below -

• Minimum GATE score - 668
• Maximum GATE score - 741

Yes, 65 marks in GATE is considered as good and is expected to correspond to a AIR of 800-1000. Students who secure 65 marks do have good options in getting into IITs and NITs for branches like EE, ME, CE, etc.