Froudulantly signed gift deed

Dear sir I am residing as tenant in Delhi. This is a company provided leased accomodation. I am living here from last 4-5 years. Monthly rent was regularly paid till Nov. 2016 in favour of landlady by my company. In September. 2016 landlady gifted her property to her dougher in law and there is proper gift deed and duly registered in registrar office. As new owner submitted the gift deed and demanded monthly rent in his favour from Dec. 2016. In good faith(registered gift deed) , company started depositing money in favour of new owner from Dec 2016. Meanwhile old owner filed a case against new owner that gift deed was got froudulantly signed and asked the court to declare in null n void and also asked for the permanent injunction apart from this a notice was also served by the old owner to my company to deposit the monthly rent in her account or vecant the premises as gift deed is froudulantly signed( we have replied to this notice that we are not liable to you as there is valid gift deed present as on date and and till the matter/case cleared by the court) and old owner also moved application under rule 39 . Later this application has been withdrawn by the plaintiff in court. We are not depositing any money to any of the party from Jan 2017. I want to know what is the solution in this case. We want to pay the rent but don't know to whom should we pay to avoid any future complications. Is there any way to get rid out of this as we are ready to pay rent and never defaulted.