My age is 22 years and I am a student of 2nd year B.Tech. Can I become a pilot?

Yes you can become a pilot you have completed your class 10+2 with PCM and 50% marks. Graduation is not a requirement to be a pilot.

You can pursue Pilot's Training Course provided you have completed your class 12th with PCM and 50% marks. Graduation is not a requirement to be a pilot. You may opt to complete your degree or enroll even now with any flying school and start the training after getting the preliminary medicals done.

Yes, you can become a pilot. You just complete your degree and then apply for some training or join some institution for the same. You can become a pilot. Good luck.