One major area of concern was the contact number that redBus had provided, which was not reachable. Morover, Kallada G4 does not have offices in different cities ( eg. Salem ) and we found it pretty difficult to locate the boarding point. But for the last minute contact of the bus driver's mobile no. from the redBus helpline, I would have certainly missed the bus. Please take care to give the correct contact numbers to avoid such inconveniences.