No it is not possible for you to pursue master of technology computer science. This is because you have done Bachelor of Technology in mechanical engineering. Bachelor of Technology in mechanical engineering and Master of Technology in Computer Science are two different things.

In mechanical engineering you learn about machines but in  computer science you learn about computers, their working and app development. For computer science engineering you are required to you complete your Bachelor of Computer Science Engineering with at least 50% marks in the aggregate.

However there are various colleges and Universities provide admission to the master of technology computer science to the students who have 3 or 4 years gap.

Read more about master of technology by clicking on mentioned below link:

https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/colleges/list-of-me-mtech-in-computer-science-engineering-colleges-in-india&ved=2ahUKEwjs-Obrvqz1AhVoh1YBHXmBAukQFnoECAUQAQ&usg=AOvVaw0ip7-EaTz2hMnKnkrkTJ9u