sir my gen-ews rank in jee mains is 15900.Please can u tell me on basis of your knowledge which branch can I opt this year in josaa (not 2019) under home state quota HIMACHAL PRADESH...

Hello, at this Ews rank it would be very diffult to get any Nit but since, you have mentioned your home state as Himachal Pradesh means your home state Nit is Nit Hamirpur , there may be some chances of getting Chemical engineering and materials science and engineering in Nit Hamirpur  and this is based on last year cutoff and cutoff changes every year.

So, apply for Jossa counseling and then for Csab counseling which takes place after Jossa counseling. Wait till spot round of counseling.

Refer to this link it will help you a lot https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

All the best. Hope this will help you.