hey swami

you need to crack jee main and advance to get a good IIT or NIT. 

or you need to get good rank in UPSEE 

OR you need to crack different exam for various popular private colleges like VIT,ANNA univeristy, BITs etc.

good luck

so there are many colleges in delhi for b.tech you should fill the application forms for many colleges and give entrance exam for b.tech . i must preffer you to fill forms of private university such as amity and galgotia they will take enterance exam and interview also. so you just crack the exam and interviw to take admission. and for this you have to join some coaching institute . they will guide you more. make youe enough to crack exam and interwiew itself. all the very best

and have a great future ahead.

First you'll need to give jee mains and jee advance and according to ur marks you would be able to take admission in top colleges for engineering.There are rounds for college selection.Fill the form and select your colleges in the list and then you would be placed in one of those colleges

The process for admission is same for every branch in b.tech.

you have give entrance test to get admission in engineering, best,most popular,most used,for admission in iit's,nit's too this entrance score reduired that is JEE-mains...

So you have to give jee mains for getting admission in b.tech in cse stream.

The entry to any btech course across the country is by the mode of competitive exams like Jee Main or State joint.By the help of class 12 marks no engineering course  is offered.