Symbiosis School of Economics, Symbiosis International, Pune

No maths is not necessary, as admission is based on SET, PFB the details:
Eligibility Criteria for SET 2019:
The aspirant must have cleared class 12th or equivalent examinations in relevant stream from a recognized board or university with minimum 50% marks ( 45% for SC/ST category students)
Candidates in class 12 or awaiting their 10+2 result are also eligible to apply but they will have to submit passing certificate by September 2018
A candidate who has completed XII (10+2) or equivalent examination from any Foreign Board must obtain an equivalence certificate from the Association of Indian Universities (AIU)The following are the reservation rules that shall be followed while admitting Indian students:
Scheduled Caste: 15%Scheduled Tribe: 7.5%Differently abled students: 3%Armed Forces Dependants (Wards of Serving/Retired): 5%Kashmiri Migrants: 2 seats over and above the sanctioned intake.

Hi Ujjwal,
I am not so aware about SSE but Shiv Nadar University's Economics department has one of the best faculty members. They are quite approachable and versatile with their research interests. They motivate you to pursue research through the OUR (Opportunities in Undergraduate Research) programme. I believe what gives SNU an edge over SSE is the number of options to explore. Not only the School of Management, Performing Arts and Humanities but an "economist" has the option to explore in the School of Engineering and School of Natural Sciences. There are some really interesting engineering courses that are useful for everyone and SNU gives you the freedom to explore them. Also, SNU provides attractive scholarships to all those who meet the requirements which are financially convenient and the campus is almost 10 times bigger than SSE. Finally, it's all on you and your passion. Go through both university websites; that will give you a clear idea of what do these institutions offer.
All the best.