Countries
How to buy USDT: country guides in English
Routes for buying USDT in India and Nigeria, each with its official source, the regulatory status of the service and what could not be verified. This is an information guide: it does not open accounts or trade for you.
India
One route with INR: CoinDCX, for Indian citizens and residents.
Nigeria
One route with naira: Quidax, which holds an approval in principle.
In both countries the exchange's regulatory status needs a careful read: see each country page.
USDT is a stablecoin: its value is tied to the US dollar, but the price can move and blockchain transfers cannot be reversed. Check the network and the address before you send.