Hello  Aspirant,

I'm giving you a link for previous year cut offs for nits. Visit the link

https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/articles/jee-main-cutoff/amp&ved=2ahUKEwiasrfcydrnAhVTSX0KHZXcDHUQFjADegQIAhAB&usg=AOvVaw0ay0p7xaI0Sc82xeEH0ED5&ampcf=1

For iiits cut off:

https://www.google.com/url?sa=t&source=web&rct=j&url=https://engineering.careers360.com/articles/jee-main-cutoff-for-top-iiits/amp&ved=2ahUKEwj7tJeNy9rnAhXOZCsKHZKOCKwQFjAHegQIBRAB&usg=AOvVaw2W7qK7I2INGnZBvhEJxpo2&ampcf=1

This year total 869010 students attempted in January. In april 1200000 students are going to attempt. So this year ranks may vary than previous years. If you want to calculate rank with your percentile use formula :(100-percentile)*students attempted /100. You can also use below link to predict colleges :

Hope this is useful. Wish you Luck