Fake directors added to company in mca data

I’m no CA and have no knowledge of the legalities. My brother started a company 4 years ago and unfortunately he passed away 2 years ago. He started the company with two of his friends and the company was registered at my father’s address, after he passed away, everything was shut down. We didn’t close the company and left it as it was. Today, I ran a search for it on the MCA master data and surprisingly found that my brother and his friends are no longer listed as directors, instead there’s two guys whom we don’t know. Their names have been added 11 days ago and even weird is the fact that a AGM has been held and a balance sheet filed this year. I searched the DIN of these two guys and found that both have be listed as directors of the same TEN companies within just ‘two’ days. This appears to be some kind of fraud! What should we do? Is there any risk if we ignore this?