Consider the Cash Deposit (CDM) which mean the buyer will directly deposit funds in your bank account so there is no trail of laundering here.
Frequent cash deposit will trigger other questions? Like, if cash deposit/withdraw amounts exceeding 10 lakh in a financial year may get reported to income tax authorities by bank. Similarly we cannot accept cash deposit higher than 50k rupees without PAN. (Anyone may deposit cash up to 50k rupees in bank account but person to person cash transaction should be lesser than 20k).
Still I agree that receiving in cash must be safer in terms of preventing all traces of where your money coming from.
Banks no need to report them since PAN is linked with bank accounts the government and IT can track anyone's financial record of all their banks combined in just a single click. But it is common that they will likely to track user who receive lump sum like one big deposit of 10L or anything above 25L combined in a financial year, but those risks are none compared to losing our bank account with all the balance in it.
And we all have family members who got bank account and may not receive much deposit other than government relief, so we can use theirs as well to increase the limit.
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I agree with this still I may go for trading outside the P2P platform but in affordable level. This is purely depends on your risk appetite. This helped me when a platform got sudden shutdown. I am not recommending to do so, but wanted to share that there are still honest people in P2P space as well.
I wouldn't because even if I have done over 100 successful trades with no redflag at all with someone still they can simply choose to block me once we went outside the platform and there is no middlemen to handle if there's a dispute. You can consider if they are willing to go first and deposit funds in bank then you can move crypto to them.