Indian Institute of Technology, Delhi

No there is no such course in IIT Delhi for Undergraduates.

No,its not possible.

No,Its not in IITD. Its offered in IITB with closing rank 1200. In IIT-KGP with closing rank around 3000.

There is no point giving a false hope. I would suggest start looking for admission in premier private universities like BITS, MU and Lovely Professional University etc.
Taking a drop would not be a logical step as gap year affects your career a lot.
Dont worry on the placement or Education part. If you would be good you would obviously do well. Best of Luck.

A rank upto 15000 will suffice and you will get good branch.

Check out UTM Shillong & UPES Dehraun. UTM Shillong offers specialized CSE courses while UPES is known for its unique specializations in core domain engineering programs. Check out the website for more details. Last to apply is near so hurry up.

IIT delhi is ranked as one of the best colleges for B.Tech. CSE is one of the top branches in this college. The job prospects are amazing and learning is equally commendable. Its a college to strive for.