hi,

see to get admission in top engineering colleges in India like nits, iiits, iits , cftis or state government engineering colleges. you have to appear in engineering entrance exams like jee main, jee advance, wbjee, mhtcet etc. however in some of the state like tamil nadu, admission is based on 12th course, students have to participate in engineering counselling of TNEA conducts by Anna university , tnea counselling is based on 12th score in pcm. students need to satisfy the domicile criteria as well as age limit to participate in TNEA counselling.

follow the below link of official brochure  to know in details:

https://static.tneaonline.org/docs/2_Information_Brochure.pdf?t=1620842057410

Hello,

If you want to join any reputed engineering college if it's private then it's compulsory to written a entrance examination. Either it's JEE Mains or any state entrance examination or the college entrance examination. If you want to get any normal engineering college then may be you can get admission without giving any entrance examination or get entrance examination oy giving the entrance examination they don't seen your qualification marks as well. So it's depends on your choosen college dear .

All the best.