500,000.
The show will be telecast weekly twice on India Vision TV.
The selection of families was a tough affair because Ambalapad had to spend a lot of time convincing the singers.
'I used to observe these singers on my journeys and I shortlisted them. And for the past one year I was tracking them and convincing them. Now, after 60 episodes have been shot, many still cannot believe that this is a reality,' said Ambalapad.
Among the 17 participating families are 50 children, many of whom don't have much of a school education because they have to play instruments or sing for a living.
Pushpa, for instance, is a 25-year-old woman who has two small kids and sings on trains. She is a participant.
Kaman Bhai is another participant. He has his roots in Ahmedabad but is a resident of Kerala now.
Interacting with the singers at every show will be leading social figures, film personalities and leading music directors.
'At the end of the programme we are aiming to get in veterans like Ilayaraja, Lata Mangeshkar , K.J. Yesudas and other music greats,' added Ambalapad.