I have sent usdt to trx network on other exchange it is deposited from same bsc network on metamask at the same time .
that transaction got success.
Impossible!
I am sure with you that no exchange will credit USDT to your account if you send it on TRON network TRC20 to a receiving address on BSC or ERC20 chain. Simply it is impossible.
BSC and ERC20 chain uses a same mnemonic seed, private key but it is not applied for TRC20 chain.
withrdowal from bsc network( metamask) and deposited on mexc exchange through trx network address.