Hey Sourabh,

The following are the list of non-engineering courses available at IISc. Since you have given GATE Score as low, I am adding the cutoff of 2018 (For General Category) so that you can cross check with your marks. 

M.Tech

1. Earth Science - 575

Research Programmes

1. Inorganic and Physical Chemistry - 450

2. Computational Science - 550

3. Mathematical Sciences - 550

4. Earth Science - 565

5. Molecular Biophysics Unit - 580

6. Instrumentation and Applied Physics - 600

7. Sustainable Technologies - 625

8. Water Research - 625

9. Divelcha Centre for Climate Change - 625

10. Centre for Neuroscience - 650

11. Management Studies - 650

12. Centre for High Energy Physics - 687

For Inorganic and Physical Chemistry, you need to have basics of the same.

For Computation Science, you need to know the area of Mathematics and Programming.

Hope this helps you. Feel free to ask if you have any doubts. All the Best. 

Hello Sourabh

I apologize from my team because we are replying you very late.

There are many courses in IISC other than engineering (if your GATE score is low you can select this ):

• Computational and Data Science
  
• Climate Science
  
• Earth Science
  
• Communication and Networks
  
• Signal Processing(Physics must be strong)
  
• Smart Manufactoring.
  

I am sharing you the official link of IISC please visit there to know more things about this degree programe .

https://www.iisc.ac.in/admissions/m-tech-m-des/#ffs-tabbed-28

I hope you get my point.

Good Luck!!!