Hello Abhinav

Since you have a low score in JEE Mains, you can't get any college through josaa counselling. Moreover, cs,ec,ee are the most sought after branches in India so they obviously have higher cutoffs. You can expect to get some govt colleges and the bottom-most NITs in branches like civil and chemical.

NITs in S.India are generally good and thus I am sorry to say but you won't get any college in the south through JOSAA.

Please don't feel down. You can apply in Pvt colleges or reappear next time and score better.

Good Luck