I went to Parigi Bhavani Hotel this Monday. Met the owner Mohan Reddy, they run a popular Veg Mess, a non-veg Hotel and a lodge.
I asked the owner if had problem with LPG supply.
He said NO LPG problem.
I went to his kitchen and saw. He said he's been using biomass pellets since 2010 and they are cheaper than LPG.
Wow 16 years!
People just started using them only now.