Fraud done in the name of heavy deposit agreement

More than 10 people including me, are being frauded by a property agent by introducing a man as an investor/ owner of the flat and we all had done heavy deposit agreements of around 50 lacs of rupees. Every individual has a different story but we all are victims of the two frauds. They submitted us a Notarized Agreement and by fooling us they took our thumb verification saying it will get your notarized agreement registered. They made another leave and licence agreement with the data they took by fooling us with the actual owner of the flat with a small amount of deposit and monthly rent. Actual owners didn't bothered to meet us or talk to us at the time of agreement or afterwards. They never called us for rent due for more than 6 months. And now the one who pretended to be the owner has ran away with lacs of rupees. And actual owners are started contacting us and asking for rent or to vacate the flat. Police complaint has been registered and the fraudster has been arrested but the broker who is the helping hand of fraudster is still roaming freely while we all have submitted our statements stating that he is the one who is responsible for all the dealings took place with the fraudster. Kindly guide us. Thanks and Best Regards