Hey Aditya, on the basis of genral rank 31000 and SC category you are eligible for few government colleges. You can have a look at these:

1. University Institute of engineering and technology, Kanpur (CSE, ECE, ME)

2. Rajkiya Engineering college (IT)

3. University of LUcknow (CSE, EE, ME, Civil)

If you wish to choose private colleges than you can have a look at:

1. JSS academy of technical education, noida

2. Ajay kumar garg engineering college, ghaziabad

3. institute of engineering and rural technology, allahabad

and few more. I would suggest you to use the career 360 college predictor to view more available colleges on the basis of your rank, category and preferred branches.