Mathematics is a good higher study option for those who have an aptitude for the subject. Students who obtain higher degrees in this discipline can find jobs in academic, banking, insurance, software, information technology, scientific and engineering fields.
Some colleges for integrated course in maths are :-

1. IISERs
   
2. NISERs
   
3. UM-DAE
   
4. IIT
   
5. IISC
   
6. BITS
   

These are some good Universities which provides quality courses in integrated maths.

Hi student,

The best colleges for integrated course in Mathematics are as follows:-

• Amrita School of Arts and Sciences, Coimbatore
• Shree Manibhai Virani and Smt Navalben Virani Science College, Rajkot
• Amrita School of Arts and Sciences, Amritapuri
• Amrita School of Arts and Sciences, Kochi
• College of Engineering and Technology, Bhubaneswar
• Amrita Vishwa Vidyapeetham, Amritapuri Campus
• Government Gandhi Memorial Science College, Jammu
• Mehsana Urban Institute of Sciences, Ganpat University, Mehsana
• Regional Institute of Education, Mysore
• Birla Institute of Technology, Mesra, Kolkata Campus

Refer here for more info - Dual Degree in Mathematics Degree Colleges in India – Courses, Fees, Reviews, Location, Ownership (careers360.com)

Feel free to ask doubts in the Comment Section.

I hope this information helps you.

Good Luck!

Dear Student,

Below are the best colleges for integrated course in maths or M.Sc in maths integrated course

• IISERs
• NISERs
• IIT Roorkee
• Indian Institute of Science, Bangalore
• Birla Institute of Technology and Science (BITS),(pilani, Hyderabad,Goa)
• Central University of Tamil Nadu
• Amrita School of Arts and Sciences, Amritapuri

Thanks