This is a nasty habit, that along with various pilots wishing each other 'good morning' etc means that Indian ATC has almost twice as much chat as it needs. It is sometimes difficult to communicate with ATC units because of the sheer volume of 'chat' on the frequency. Hopefully in the future, CPDLC might help reduce this. I suppose it would be asking too much for the Indian authorities to invest in ADS-B -they really need it sooner rather than later.