Am I eligible to do B.Tech in CSE after completing Diploma in electronic and telecommunication?

Muzzamil, you will be able to do that as first year syllabus for all engineering streams is same and after first year the syllabus changes and branch specific course start. So, you can take lateral entry in B.Tech 2nd year on basis of your diploma. Some institutes give admission on basis of LEET exa

Yes, you can do B.Tech in CSE after completing Diploma in Electronics and telecommunications. After completing your 3 year diploma course, if you want to get admission in the second year of B.Tech directly , you have to give the Lateral entry examinations like JELET, which are conducted by the state