Online Shopping Contest Pvt. Ltd. — Scratch and win lucky draw voucher card

Sir,
Someone sent a false winnership letter (Proprietor: snapdeal) from "online shopping pvt. Ltd. Ph: [protected] (Add. 8th fl., sector v rdb building, salt lake kolaka wb 700091. They are saying u got a prize money of rs. 120000/- and a 2nd prize i. E. A car worth 8.2 lakhs from" online shopping pvt. Ltd." in order to get this prize, they are asking to pay 1% of the total amount as govt. Taxes etc.
Pls take action against such false and fake prize assurances.