A unit bought in 1996 for Rs 513000 vide registered sale deed was sold in 2011 for Rs 4410000. There are two aspects that are confusing & need help on. Firstly the said property was registered as a Unit in 1996 no specified use mentioned in the registered deed & due to change in land use by the Delhi govt laws the same became commercial, Thus the registery in 2011 was a commercial registry. Also the property was jointly bought by a Husband & Wife in 1996 & during the course the husband expired & willed his share to his wife. The property was sold to pay off Bank debts of companies that both were directors / partners off. No property was bought out of the remaining funds. What are the Tax liablities in such case & expemtions if any available. The seller is female aged 65 years old.