i get 27 percentile in jee mains and 56 marks in sc category

Hello Aspirant,

Based on your percentile and marks it is difficult for you to get admission in top colleges.To get admission in top NIT and IIT colleges you have to score more.

To know the jee main cutoff expected based on previous year qualifying cut offs go through the below link
https://engineering.careers360.com/articles/jee-main-cutoff

Predict your rank using the rank predictor tool below
https://engineering.careers360.com/jee-main-rank-predictor
You can also check the list of colleges available for your score in JEE mains using college predictor toll below

https://engineering.careers360.com/jee-main-rank-predictor
Hope this will be helpful.
Best of luck.