ATS is one of India's biggest share broking firmofferinglowbrokerage rates for futures and options trading, commodity trading, equity and mutual funds and the application of IPO is hasslefree.
Never pay down a deposit in a bank account until you have met the seller, seen signed a purchase agreement.
No serious private advertisers ask for a down payment before you meet.
Receiving an email with an in-scanned ID does not mean that you have identified the sender. You do this on the spot, when you sign a purchase agreement.