Hi

Quick back ground about me:

10th 81%
12 74%
Engineering in Computer & science 55% One of the college from JNTU University.

Work experience : Total of 4.9 years by June 2014
2 years in online advertising in a start up company.
9 months of entrepreneurship
2 years in online advertising (HAVAS Media - Biggest among the world)

Keypoints
Received 100 % hike after 1st year(Intial CTC was low)
Failed as an entrepreneur
In Current company displayed leader ship skills ,volunteered for roles & was successful.
Business Development for PAN India and coordinator for APAC Markets.
APAC Delivery experience, Worked on brands on CITI,AMEX and many big brands.
Worked on tech projects(adwords) for Singapore Clients

I had good extra circular achievements like organizing fests, my own cultural events, paper presentations, sales and marketing & consultation experience

Target score 670+, Targeting top 50 schools in the world.

Here are my questions:
1. failed entrepreneur experience is it a drawback?
2. My engineer % is bad. I had my own rational reasons for that?
3. "Diversified profile gets selected". since Online advertising in nascent do i have an edge? is it true?
4. Is it necessary to work for an NGO? whats the value in terms of admissions to B school.
5. I cannot get recommendations from my first company,but can provide very strong and big guys recommendations from my current company. will it be enough?

Please suggest.

Thanks
Bobby