Hello,

Good to read about your aspiring dreams.But there are lots of conditions you should fulfill for getting admissions in top Bschool. 

1. You must have an excellent 10th and 12 th th percentage, minimum 95%

2. Graduation stream will not be taken into consideration much but B.Tech, B.Com would be a cherry but the degree should be from reputed and top colleges of India only.

3. You must have minimum of 2 years of work experience for getting into prestigious college.

4. And a very good profile, so you should be actively participating in extra curricular and academic events and competitions. And get involved in social service activities.

In Graduation u have only Master Degrees.
U need to specify your IELTS score for get admission in HARVARD or OXFORD.

Thanks,
Azim