Around 30,000 customers went ahead with the booking despite a technical glitch and 7 crore people signed up for the phone.
According to the company, 200,000 handsets have already been shipped in the country for the first phase of delivery.
The Directorate of Enforcement is investigating Ringing Bells, the company which has launched smartphone for Rs 251, for alleged contravention of FEMA.
Mohit Kumar Goel has created a flutter in India launching the world's cheapest smartphone.
Promoters of world's cheapest smartphone refund customers' money, close fresh bookings