Indigo Airlines — Job for money

Sir I had come in contact with HR Rohit through Facebook reel for job in aviation indigo airlines for which I had contacted him he had asked me to pay the amounts to particular account which I will attach it I had paid an lumpsum amount of which the amount was to be refunded and a cheque was also been signed but as he met with an accident and was admitted in Hyderabad for his head operation were it was performed and by bad luck he is no more as informed by the jahura begum details will be attached now she is demanding for money as the cheque amount she says is that the some amount is been deposited in my account the account which I don't know as per her it's in the salary account of indigo the is axis bank and I don't have any documents of the bank so what should I do please help me can you.All details can be forwarded when required as well as what's app chat between me Rohit and jahura begum.