Transfer money to foreign countries without TCS

Hey, I've been looking for a while some way to transfer money from india to outside country like dubai . Cause my friend is in dubai and he can buy at 83 rate . and then transfer crypto here . but after selling crypto how can i transfer him the money back to continue the cycle . I've tried forex platform like exness to transfer but we can't withdrawal via that . If deposit in gamblling site then wager will be the problem . If transfer via skrill , neteller ,wise then there's fees . Also if i transfer via any means then there's TCS over 7 lakh is 20% .
so, I've check out everything . is there any other ways on you guys . so please share .