I believe at a General Rank of 31k, though you have OBC Advantage, you perhaps have bleak chances in securing a seat in a good technical institute in Uttar Pradesh like IET Lucknow, MMMUT Gorakhpur, HBTU Kanpur. However do keep an eye on the counselling procedure and dates. For more information and college prediction on basis of UPTU Rank do follow the link below.

https://www.careers360.com/upsee-college-predictor