India

This link would be useful for you to understand about the best and top colleges.
https://www.google.co.in/url?sa=t&source=web&rct=j&url=https://www.quora.com/Which-college-is-the-best-for-an-MBA-in-media-management-in-India&ved=0ahUKEwi8ramg-oHWAhVIuY8KHVN-DZwQFggnMAE&usg=AFQjCNHojX2aJJpsaYyPNihDbsqEaygkVg

Hi Deepanshu,
It would be very hard to say which board is tough or easy. But if you go for CBSE board, you would be better placed as the syllabus is common throughout the country. Moreover, the maths and science syllabus of the CBSE board is in sync with IIT JEE and other competitive examinations. But if your focus is more towards state engineering entrances, the state board would be better as it will cover the maximum syllabus of the exam. For commerce students, CBSE is always better as it has produced all India toppers in this stream plus the undergraduate courses are based a lot on CBSE pattern.

Hi Neha,
For courses in climate finance, you can apply for India GHG Programme. For details regarding this, please follow the link:
http://indiaghgp.org/climate-finance

Hi Yogi,
You can checkout the link below colleges offering MBA in Karnataka:
https://www.shiksha.com/mba/colleges/mba-colleges-india?uaf[]=location&uaf[]=exam&ts=15982617&rf=filters&st[]=106&ex[]=9262&ed[]=et_20

Yes, you can appear for KCET in Karnataka, as there is no restriction on candidates from other states to appear for the KCET provided you qualify for the exam's eligibility criteria.
Please refer to the link provided below for details regarding eligibility criteria for candidates appearing for the KCET:
https://www.shiksha.com/b-tech/exams/kcet