Telegram Channel "Sunil Bas" Lures Users Into Tashan Win App and Then Holds Winnings Hostage

I downloaded the Tashan Win app today through a Telegram channel run by a person called Sunil (who uses the name “Sunil Bas / Sunil_SUNIL_boos”). On this channel he invited people to join the Tashan Win app and promised that we could earn money through his predictions, and he also claimed that if anything went wrong, he would be responsible. After joining through his Telegram channel, I followed his predictions inside the Tashan Win app and won a total of ₹50,000. When I tried to transfer this ₹50,000 from the app to my bank account, the money did not come to my account. Instead, Sunil and the related people told me that before I can receive my own winnings, I must first deposit an additional ₹6,900. I clearly told them that I do not agree to pay extra money just to withdraw my own balance and requested that they simply transfer the ₹50,000 to my bank account. Despite this, they are insisting that I first pay ₹6,900 and are refusing to release my ₹50,000. I feel misled because the Telegram channel encouraged people to join and play with the assurance that they would be responsible, but now they are blocking my withdrawal unless I pay more. I urgently request that this situation be investigated and that my full winnings of ₹50,000 be transferred to my bank account without any requirement to pay ₹6,900 or any other additional amount. I also request that necessary action be taken against this practice so that other users are not put in the same situation.