Hi Aman,
Glad that you're doing your research on MBA programs and asking questions. Based on the limited information that you provided, it's hard for me to assess what your chances are for these programs. You have a great GMAT score and attended a good engineering university in India. However, the challenge is that you're coming from a very competitive demographic, being an Indian national who attended an engineering school in India. With 3 years of work experience in fin-tech, your years of work experience is below the average for applicants at these schools. You will have stiff competition from other Indian nationals with more years of work experience, from higher ranked schools and even more prestigious companies. If you're not ready to submit your application for R2, I would highly recommend that you wait another year since R3 would be practically impossible to get in even if you're stellar, just because of the limited number of seats left.
What would determine your chances of success given your competitive demographic and less than average years of work experience, are you leadership experiences and ranking vs your peers. What would differentiate you would be top rankings at work, along with supporting recommendations that tell the adcom that you're head and shoulders above the rest of your peer group. Your leadership experiences are key and you must show that you've exhibited outstanding leadership qualities in your 2 years at work and the impact that you've made. In addition, you need to have an ambitious but achievable (with an MBA) long term goal that is meaningful to you. Given that many MBA graduates go into investment banking, you need to provide a compelling reason as to why YOU want to go into investment banking, so you can differentiate yourself from the rest of the applicants. If you're able to make these points, then I believe that you would be competitive for the programs that you've listed.
Best,
Cindy