using a non kyc custodial service on telegram (I know there are a few reputable ones in operation since years. They really work and never heard of a scam there!).
I would never suggest anyone to use any telegram service or groups if they want to use something non-custodial and non-kyc.
Telegram account is directly connected with your phone number and IP address location, and they don't have any encryption in chats or in groups, so everything is public and stored on their servers.
Some say that secret chat has some encryption, but this is questionable, can't be verified and it's only available on mobile devices.
Other than Localcryptos and other similar p2p trading website, there is also decentralized exchange called Bisq, but I am not sure if there is liquidity for specific region.
You can always start your own trade and call people to join with adding more liquidity, and this is one of the best ways for trading.
Your keys, your coins and fiat currency method of your choice.