India

The admissions will happen under two streams.
Stream 1: 70% of seats through JEE (Mains) score and +2 score.
25% and 75% of weightage will be given to JEE score and +2 marks under this stream. Your +2 marks will be normalized with that of the first rank student's marks in your board. You will be ranked with respect to the combined score of your JEE (Mains) and +2 marks. Your rank will be determined by the combined scores of all other applicants. Stream 2: 30% of seats through +2 marks. You will be ranked according to the normalized percentage of your +2 marks with other applicants under this stream.
Admissions under the two streams will happen according to your rank. You can apply under both the streams.

Dear Shashank,
Check the link below to know the colleges you can get with this rank in Rajasthan:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
In case you don't get a good college, don't settle for some mediocre college. Instead of settling down for some mediocre college, it would be better if your try for some good private university. Many reputed private universities are offering B.Arch. They have their different criteria for admissions.
Some offer admission on basis of JEE scores, some offer admission on basis of NATA and some offer admission on the basis of both. Some even offer direct admission on basis of class 12 marks. Some of the universities also offer scholarships on basis of your performance in class 12 or JEE or NATA. You can check the details of any of the reputed universities like VIT, Lovely, SRM, etc. All these universities have wonderful infrastructure and world-class facilities to offer to students apart from good placements.