My aunt is living in a rented house in Chennai, India for the past 24 yrs. The owner of the house never cared to look at the house all these years..My aunt has the electricity bill for that flat in her name whereas the property tax and water bill is in the owner's name..There was no rental agreement made..As the building is nearing demolition and land prices having gone up, Now the owner suddenly came and wants to sell the house and asked my aunt to vacate the house..My aunt is ready to buy the same house with market rate. But she dosen't want to leave the house as she has been looking after all the repairs and maintenance of the flat for the past 24 years. .Having spend nearly 25 lakhs all these years on the house till date on its maintenance and repairs..Now with the flat going to be demolished in another 3 years, i want to know if any case can be filed by the tenant against the owner seeking compensation and if my aunt has any right over the ownership as she has been residing there for the past 24 years..Kindly suggest an effective way to proceed with this issue..Looking forward for your valuable suggestions..Thanks in Advance