Hi Murali, the cutoff varies every year based on various factors like number of test takers, number of seats available, difficulty level of exams etc. However going by the past records, some of the IIT you can expect call from are, 

1) IIT Bombay - communication eng. 

2) IIT Hyderabad - VLSI

3) IIT Bhubaneswar

4) IIT BHU - Communication eng. 

5) IIT Guwahati - Communication eng. 

You can refer to our link, which contains the gate cutoff for various IIT for ece for various streams of M.Tech 

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