prashitjain:
1. Is my profile good enough to be considered for the top10/ top20 schools
I don't see it as it stands now. You're on the young side and, while you are confident in your ability to score better on the GMAT, have not achieved the 730+ needed to get you over the hump. Your ECs sound good but slightly underdeveloped. You are better off waiting at least 1-2 years. This would allow you to properly develop your work experience, improve your ECs, likely strengthen your letters of recommendation and take your time on the GMAT.
2. Can you suggest Dream, Target and Achievable schools in my current/expected score range
If you are interested in Financial Services / Technology, I would think about schools like NYU Stern, Michigan Ross, and UC Berkeley Haas, among others. That, of course, depends on you following up on my response in the previous question.
3. What chance do i have of getting a scholarship
Very low for the Top 10/20. I think you'll have a hard time getting in, much less getting scholarship money. Heed my advice and you'll stand a better chance of possibly getting into a great school and securing some money.