It is completely possible to get admission in B.Tech regular mode after completing your Diploma course.There are many Universities in India which offers Engineering admissions to Diploma holders.To get admission in B.tech on the basis of Diploma course,you must have completed your Diploma course in any Engineering stream from a recognized Technical Education Board with at least 60% marks.
Most prestigious Engineering Colleges offering Lateral entry admissions are:
Thapar Institute of Engineering and Technology,Patiala.
Guru Gobind Singh IP University,Delhi.
Sant Longoval Institute of Engineering and Technology,Sangrur.
Harcourt Butler Technological Institute,Kanpur.
Punjab Technical University,Jallandhar.
Guru Tegh Bahadur Institute of Technology,Delhi
Amity School of Engineering and Technology,Noida
Delhi Technological University,Delhi.
Netaji Subhash Institute of Technology,Delhi.
Guru Nanak Dev Engineering College,Ludhiana
DAV Institute of Engineering and Technology,Jallandhar.
SBS College of Engineering and Technology,Ferozepur.
PTU Giani Zail Singh Campus,Bathinda.
All the best.