Profile Evaluation - Indian Engineer Male aiming for top 5

Hi,

Can you please go through the below and provide me your valuable inputs? Specific questions I have are listed at the bottom.

Bio: 1994 born, Indian, Male

GMAT: 770 (Q 50 / V 46)

Intend to apply R1 for 2021 intake.


Education: Top 20 (By govt rankings) Indian School (non-IIT) GPA 8.11/10 Electrical and Electronics Engineering (no official figure on rank. The gold medalist had 9.84/10 GPA). Grappled through a serious medical condition during college. (Note - Got selected for ISB Young Leaders Program but I dropped out)

Full time work Ex - Total 4+ years (at the time of applying in Sep 2020)
1. 2.9 years in a Consulting division of a Big 4 Accounting firm. Worked with Fortune 500 clients in insurance and hospital industry. Mostly on Cost Optimization, business Process Restructuring and Project Management consulting assignments. Worked at Office of the Managing Director for a year. 4 awards. Few months of international client facing experience in US (had to come back due to immigration issues).
2. 1.5 years in top tier non-profit (think Gates/Dell/Clinton Foundation) where I work with national govt on a high impact project in digital transformation & leveraging AI/ML for public health systems.

Part time work ex (pro bono):
1. Worked with a Member of Parliament (Upper house) to create a strategy to make Bangalore a tourist hub.
2. Worked as remote volunteer with a national award winning documentary film maker for his new project around families residing along borders of India

Extra curricular:
School
Ambassador for a top tier international education NGO. Co-founded its school chapter. Taught English, Math to 30 children for 2 years.

Undergrad
1. Organizer (1/15, led Revenue Dept) of one of the largest college cultural festivals in the country. Led team of 80 to generate revenues of 65K USD+ and footfall of 30,000+
2. Volunteer with top tier national education NGO for 3 years in various roles - Teacher, fundraiser, career counselor, Mentor
3. Social Entrepreneurship venture with Enactus to create livelihood for 6 widows in rural India. Raised 6K USD as funds from Walmart, KPMG. Led 50 member team.
4. Co-founded a college club which was a collab between the college and an MNC. Led 40+ member team
5. Participated and won in 15+ debate tournaments (MUNs)

After undergrad
1. Ambassador for alumni association of college and created the social media presence - generating 20K+ engagement in 6 months.
2. Participated in education related CSR activities at Big 4 firm
3. Completed Certificate course in public policy (Young Leaders for Active Citizenship). Studied under Harvard MPA/Oxford MPP educated mentors.
4. Rejoined the national NGO in (2) above as a Mentor for youth (18+ years of age)

Target Schools: H/S/W/MIT/Insead/Booth

Post MBA Goal - Deciding between Impact investing in India and International Public Sector Consulting

Added Info - Applied in 2018 with a hurried application (think 4 schools in 1 month) to H/S/W/Sloan. This was when I was still at big 4 consulting. Bad Decision. I know. But that ship has sailed.

Thank you for taking time out to go through my profile. The questions I have are -

Questions-
1. I have a non-IIT undergrad and not-so-stellar GPA. How do I optimize this aspect for H/S/W? the GMAT is one way. But what else can I do?
2. I have never had direct reportees during professional life. Even in my current role I am directly working with the leadership of the Ministry of Health. I have guided technical/ops teams but its not direct reporting. How do I showcase leadership?
3. Re-applicant. I applied 2018 December. I will again apply 2020 September. What is the potential impact?
4. Are the target schools realistic?
5. What else can I do to improve my profile?