Hi Bunty,

The top beautiful campuses of IITs in India are as follows:-

1. IIT, Roorkee
2. IISC, Bangalore
3. IIT, Guwahati
4. IIT, Bombay
5. IIT Kharagpur
6. IIT, Kanpur
7. IIT, Madras

Some institutes like BITS Pilani, NIT Srinagar  have even more beautiful campuses than that of some IIT's.

Feel free to ask doubts in the Comment Section.

I hope this information helps you.

Good Luck!