Hi,

Many engineering college takes admission through entrance test so after 12 you have to give entrance test for admission to engineering colleges. You can give jee entrance test or the state entrance test or if the institution has its own entrance test you have to apply for that first.

Here is the link which will give you a detail list of engineering entrance test in india https://engineering.careers360.com/exams

With delhi as home state you can get reservation in the following colleges as Home state candidate through jee main.

Delhi technological university (it has single girl child reservation also)

National Institute of technology delhi also called nit delhi

More information about which college you can expect for admission on the basis of jee main score you can get through the following college predictor link