There are two ways you can follow to check the placement packages and details by visiting the official website. Another thing is that you can search the name of your college followed by career360. For example, you want to know about NIT Warangal. Then on google search you can go and search 'NIT WARANGAL career360' and the link you will get in the first suggestion visit it and you will find option of placements. Click on it you will get the placement rate and if you slide down you can get the median package.

I am providing here the link for NIT Warangal:

https://www.careers360.com/university/national-institute-of-technology-warangal

I hope this answer helps. All the very best for your future endeavors!