What doents are needed for new gas connection in chennai?

In which part of chennai, you are from. I think ration card is enough but since you are from kolkata, you have to transfer the card, is that possible? Go directly to the gas dealers and ask, show your company ID card and ask information. I think your HR letter is also not enough.The other alternative will be private gas agencies who doesnt require much doents, it will be easy.