IIIT

One should have scored at least 75% marks in class 12th examination. Apart from this, there is no other condition of 12th board percentage is required for admission in NITs and IIITs. And also there is no any official benefit of having a good percentage in 12th.

Hello Veman,
To get admission at NITs or IITs, you are required to have a good score in JEE Mains and Advanced. But, it is mandatory that you have a minimum of 75% (for reserved categories) or 65% ( for unreserved categories) in board exams to be eligible for the admission. Even if you have a top rank in JEE exams, if your score in boards is not as required, then you will not be able to get a seat.

You need to qualify JEE Mains. You should score above 75% in HSC.

Visit the link below to find the colleges on the basis of your rank:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor

For your answer, I am providing you a link. Please insert the AIR and the list of colleges that you might be getting on the basis of your rank will appear-
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
Hope your query is resolved.
Best of luck.
For any other query, please feel free to ask me.

Friend, there is no chance of getting NITs or IITs. You can get state government colleges or you can go for other private colleges available.

You should prefer IT at IIIT Lucknow.

No, you'll not get any of the above-mentioned colleges (assuming that you are general ). You are likely to get into one of the private universities or autonomous state government institutes.

Can I know the rank, because mostly the colleges are predictable only by the rank. If you got higher rank also I suggest you to go for JOSAA because in the previous year many seats were vacant due to lack of knowledge during options entry. If you're lucky enough you get one of them.

JEE Mains 2018 College Predictor
Use your JEE Mains 2018 rank to see where you can get admission at the link provided below:
See the courses, colleges & rounds you may crack
The result is based on admissions data of JEE Mains 2017
Get resources & insights on colleges & courses
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor.