hi,

see  the cutoff score change every year and admission to lateral entry students in btech course is done by lateral entry test and diploma score . however every year cutoff score changes and it depends on certain factors like number of applicants, questions difficulty level, seat matrix,students category, choice of streams etc. however if your diploma course aggregate in more than 90 percentage you have decent chances. I suggest you to apply and participate in the counselling process and lets see whats come around.