Sorry to hear this brother. I remember a friend of mine taking a loan from one of these apps at an exorbitant 30+% interest rate.🙃 On top of that, they charged a lumpsum (around 10% I think) processing fee plus GST.
It's best to avoid trusting such easy lending service providers. They often have hidden TnC that we may not fully understand. Always consider approaching established banks for loans, as they are more transparent and reliable.
I recommend seeking help from friends or family since the amount is only ~4L, and you might be able to arrange a no-interest loan. Alternatively, if you have gold, consider pledging it to get a loan from a nationalized bank.
All the best with this bro!!!