Online fraud in telegram channel - Telegram fraud

I got contacted by someone on whatsapp, they gave few easy task cause of which i did get real time money, later they asked me to deposit some amount and get that amount+commission which i again did. But later i there was a task where we had to make back to back deposit starting from **** to *****. I am a salaried person and i don't have that good financial background. There was a last task of ***** deposit which you can't do then whatever you have deposited will also go. Which i wasn't aware. I didn't knew there will be these big amounts step by step. And i have * rs in my account after ***** deposit. And i was said that there will be only * deposits and then you can withdraw it with commission. Now i can't withdraw. I don't need commission but the only amount i invested. ****+*****+***** = *****. Please help me get that back.