Can I get admission to B.Tech 2nd year after completion of Diploma in Engineering?????

Yes definitely you can get admission in 2nd year B.Tech after Diploma. This scheme or procedure is known as "LATERAL ENTRY " or "DIPLOMA TO DEGREE".

But for admission, you will have to appear in an entrance exam which is conducted by the college administration in which you are willing to take admission.

Eligibility for lateral Entry:
You should have passed Diploma in Engineering awarded by the State Board of Technical Education or Equivalent after undergoing regular course of three years study in an approved institution.

Following are some top colleges where you can apply for lateral Entry:

Motilal Nehru National Institute of Technology
Vellore Institute of Technology
Jamia Millia Islamia
Thapar Inst of Engineering & Technology
P.S.G. College of Technology
Faculty of Engineering and Technology
Kalinga Institute of Industrial Technology
Netaji Subhas Institute of Technology
International Institute of Information Technology
Dhirubhai Ambani IICT
Vishwakarma Institute of Technology