Chetak Premium (2024) comes with the onboard charger and a charging cable. You may use any normal 220V, 15A, 3 pin earthed socket to charge your Chetak with the provided Chetak charging cable
Chetak 3202 (2024) comes with the offboard charger which can be used with any normal 220V, 5A, 3 pin earthed socket to charge your Chetak.
In either of the cases, irrespective of the model, the consumer is responsible for any damage to the Chetak or the provided equipment due to voltage above 250V rms or malfunction or earthing related issues or any other electrical related issues at charging place.