Hey bud! Here is some stuff I can highlight:
Strengths
Mortgage & Risk Management Expertise – 4 years in collateral and capital analysis with experience handling multiple teams (collateral, asset, loan, and customer service). Managing risk for 900+ loans monthly is a solid quantifiable impact.
Project Management & Leadership – Managed 15 employees across different projects, worked closely with developers to automate processes that increased team efficiency by 25%, and handled international clients.
Mentorship & Extracurriculars – Mentored 34+ students in an NGO, arranged events, raised funds, and secured sponsorships. Connected with Toastmasters, showing communication skills development.
Finance Focus & Additional Learning – Pursued a Data Analysis course from Nasscom, aligning with finance and risk management.
Issues / Improvement Areas
Low GPA - I absolutely agree with you. 43% would need a huge justification, specifically for IIMs. ISB, XLRI and BiTSOM would not be a big issue because you nullify that with a large work-ex you bring. Going deeper, I think for ISB if you get a 720+ this 43% would be cleared. But for IIMs, it is gonna stay a red flag but through interview and essays we can have a competitive chance.
The 1st MBA - Man, this will require a good story. I was in same situation when I applied for YLP during my Masters. In my case, I cleared it with a strong focus on explaining to them why ISB is needed. So, the strategy would be to be upfront about it and have strong reasons. Believe me, this can be a make-or-break issue for all colleges, so be super clear about it.
I think for your profile, I wont suggest any more stuff that needs to be done. Your focus could be on absolutely crushing your GMAT and then explaining your profile. The GPA can't be changed and I would suggest a subtle approach for it. For the 1st MBA be proactive and a bit adamant about explaining it.
In terms of chances, BitSOM and XLRI would be easy. The others would be a little competitive, specifically IIMs. But, I have a gut feeling they would be appreciative towards you given the diversity you bring.
If you want to dive deeper, drop a DM and I would be happy to help out as much as possible

Good Luck bud!