non-delivery of items purchased online after payment is made through debit card

Location/place: Kolkata

Name of company/service: Ramakrishna Mission Residential College (Autonomous), Narendrapur, Kolkata 7000103

i made payment through my debit card for some dress materials from mangostreet.com and have not received any communication from them except the confirmation i got immediately after the payment. the site can not be opened from the next day. it seems the existence of the company is no more. Below is the details of the purchase and the confirmation i received from them.

Order #: 100002494
Date: Jul 17, 2012
240, Okhla Industrial Estate, Phase III, New
Delhi – 110020 (India)
SOLD TO: SHIP TO:
Bijayaditya Chakrabarty
30B/1A Seven Tanks Lane, Kolkata
700030 ( near Seven Tanks CPIM Party
Office) Kolkata,
West Bengal, 700030
India
T: 9830079264

to be shipped to :

Bijayaditya Chakrabarty
30B/1A Seven Tanks Lane, Kolkata
700030 ( near Seven Tanks CPIM
Party Office) Kolkata,
West Bengal, 700030
India
T: 9830079264
Payment Method Shipping Method
Free Shipping – Free Shipping
Product SKU Price QTY Tax Subtotal
Peach Sleeveless Party Dress S9-6023-7-8y Rs.1,099.00 1 Rs.0.00 Rs.1,099.00
Age Group: 7 – 8 years
Order Subtotal: Rs.1,099.00
Discount: -Rs.300.00
Tax: Rs.0.00
Grand Total: Rs.799.00

please help me recover my money.