crypto ponzi scheme:sec charges founders of  of ponzi scheme after defrauding over $2 billion frm retail investors https://t.co/s5twemcogg @beerbicepsguy @appurv_gupta @kavitagupta19 @nayantararai @khantilmehta @vijayshekhar @etnowlive @moneycontrolcom @sebi_india @rbi