At 24607 rank in upsee which college I would get I belong to sc and my 12 percent is 90.6

Based on you rank there is rare chance to get a government College. It is very difficult to get a good private College. The private Colleges where you can get admission are:
.1 IIMT ENGINEERING COLLEGE GREATER NOIDA
2. ITS GREATER NOIDA
3. KRISHNA ENGINEERING COLLEGE GHAZIABAD.
4. INDERPRASTHA ENGINEERING COLLEGE GHAZIABAD
5. SHARDA UNIVERSITY GREATER NOIDA
6. AMITY UNIVERSITY NOIDA
You can go through these Colleges. You have chance to get any of these Colleges. It also depends on the cutoff list. The cutoff list depends on the number of students appeared in the exam and the level of paper whether it is easy , moderate or difficult. You should do counselling properly. You should go through counselling till last round. As you have good percentile in class 12th but it doesn't affect to counselling. It doesn't matter what percentage you got in class 12th. So go through these Colleges.