Hey Aspirant!
Yes, you can apply for B.Tech in IT (Information Technology) after completion of your Diploma in Electronics and Telecommunication (EXTC).
Candidates who have completed a 3-years diploma in any engineering stream are eligible for B.Tech for Diploma holders. These diploma students can get admission in the second year of the engineering courses.
There were various exams through which you can get admission ,LEET exam is conducted for Diploma holders who want to get admission in B.E or B.Tech courses in any Engineering college . This is national level exam. But you can also apply for state level exams in you belong.
For more details on LEET you can check Careers360:
https://engineering.careers360.com/articles/what-btech-lateral-entry-eligibility
All The Best!
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile