Hi Amrutlal
Congratulations for scoring good marks in Jee main examination as your rank is good enough to get NIT Surat if you have Gujarat domicile then you can easily can get all branches in NIt surat except CS branch apart from these are many government college you can get from these so do net worry for that apply for josaa counseling

Hope above information is useful for you

Good luck

Dear aspirant
In your question you have not mentioned that in which exam you got 15000 rank it is a bit difficult for me to tell you about the colleges which you are eligible for so kindly comment the name of exam you are talking about so that I can help you in a better way