What are the legal step i can take to recover money for being scammed by a stock advisor

This guy came to my house as a internet service provider Gave me his no. Later added posted many stock profit n loss status and kept contacting is evrythng ok.. do u need help. One day on asking what this this status that u keep putting up he told he is a stock advisor n runs a stock advisory and goin ahead he askd me to invest money though him n try for a month or 2 later my mom was interested and she invested a small amount ok 10k n he gave the returns as promised n he even made fake doc that we are investing so much n he has to return so much in this tim period. He told mom he is a SEBI registred company by govt and showed my mom his website and convenced my mom he is legit which he is not he is just a scammer. my mom invested small amount n fast fwd 3 months. My mom was convinced he is legit n invested 6laks without informing any1 at hom.. aftr a week he made reasons told he made to much profit so he got an incom tax raid n cudnt pay back needs tim lf 2months and so on. Fast fwd 8 mnths still hasnt paid us a penny and he isnt on the state anymore im frm bangalore karnataka n now he fled to odisha.. how do i get hold of him.. i contactd police n the sub inspector calld him up n he is lik il pay him by the accnt statmnt money transfered and all the amount paid in cash is also gon. Help me how to move fwd with him. Dnt hv his offic details and he fled to odisha but still in contact n says will pay he is in trouble my mom is ill n has hit dipression n got a leg paralyzed thinking abt this blunder n she had given away the money savd my her daughters marriage