For diploma in computer science the INR 13,500 to INR 57,333 per year.
It's totally depend on which college you get admission
In my experience for 1st year all admission fees maintenance money caution money etc add so it's around 2000 to 20000 above


This is some list of colleges with different fees (3years)
JMI New Delhi - Jamia Millia Islamia fees around 27000

Nitte Meenakshi Institute of Technology, Bangalore fees 31500



Government Polytechnic, Nashik just semister fees

SLIET Longowal - Sant Longowal Institute of Engineering and Technology fees 60000

JIS School of Polytechnic, Kalyani fees  72000


Government Polytechnic, Pune fees semister fee

Government Polytechnic, Nagpur fees just semister fee

Ambedkar Institute of Technology, Delhi fees 18000


St Mary's Technical Campus, Kolkata fees 90000



For more information you can visit here

https://www.careers360.com/courses/computer-science-engineering-course

https://engineering.careers360.com/colleges/list-of-diploma-in-computer-science-engineering-colleges-in-uttarakhand

https://engineering.careers360.com/colleges/list-of-diploma-in-computer-science-engineering-colleges-in-kolkata

https://engineering.careers360.com/colleges/list-of-diploma-in-computer-science-engineering-colleges-in-india



Thank you, I hope this answer helps you.