Dear student. 

Greetings. 

The minimum marks for getting admission into a government engineering college is an aggregate of 75% in lass 12th board examinations. Some goervnment colleges have a relatively low cutoff ranging as low as 65-70%. Also, the cutoffs are different in government engineering colleges for different caste categories. Mention your caste category and the government college you seek admission into so that we can provide you a better explanation. 

Thank you. 

All the best.