Hi Rutuja! 

Last years ki cutoff dekhne ke baad, bade dukh ke sath ye kehna pad rha hai ki aapki ST rank high hai. Under1000 ST rank valon ki hi possibility hoti hai iit mein seat paane ki. Par fir bhi aapko counselling ke liye registration jaroor karana chahiye.Agar aap bhagyashali rahi toh shayed apko seat mil jaye. Counselling mein sabhi iits ki sabhi branches bhar dein ek bhi na chhodein. 

Kripya  upvote karein agar mera jawab aapko pasand aaya toh. 

Thank you and good luck. 

Hi there,
Hope you are doing well.
With 1160 rank in ST category, getting a branch for you is highly unprobable.
The final closing ranks of some lowest branches were:-

• IIT BHU:- B.Tech. + M.Tech. - Pharmaceutical Engineering & Technology (5 years):- 1143
• IIT BHU:- B.Tech. + M.Tech. - Ceramic Engineering (5 years):- 1139
• IIT BHU:- B.Tech. + M.Tech. - Bioengineering with M.Tech in Biomedical Technology (5 years):- 1137
• IIT Roorkee:- Integrated MSc Physics:- 1131

Hope it would help.
Thank You