Tenants are undertaking business in my residential flat

Hello Experts, This is regarding my 2 BHK flat in a residential society in Virar West. I have recently put it to rent to family. I have apparently come to know that the women in the house are employing business from within the house wherein they cook food for about 100 people every day. In addition, the rental lease registration has been done only for 6 people, but I have come to know an average of 10-12 people daily live in the house. My question to the expersts is: 1. is there anything for me to worry about their cooking business? Am i suppose to take any action? 2. Can they legally allow more than 6 registered family members to reside in the house? What if they recon the extra people are their relatives who have visited them from Native for a month or so? Is that allowed in a rental lease setup? Awaiting to hear from you experts. Thank you very much in advance.