I bought a property from a builder in Chandigarh in Nov 2018. In the agreement, the builder agreed to give possession of the property by Dec 2018, or else he would be liable to pay a penalty. Immediately after, I signed a lease agreement with the same builder in which the builder agreed to take the property on lease from me and pay me a fixed rent for 3 years. Now 3 years will expire next year and the builder has done no work on the property, nor has he given me a letter of possession as agreed to in the agreement. He claims that since I've leased out the property to him; he has no obligation to give me possession till the period of a lease via 3 years. Instead, he is asking me to pay more money and upgrade to a bigger property on a different floor in the same project as my original property is unlikely to be completed.
My question is - Can I hold the builder accountable for the delay in giving possession, as agreed to in the contract, even though I'd leased out the property to the builder?
There is one line in the lease agreement that says "lessee may alter the layout of the property according to future requirements"
Can this line be used to claim that the builder is not obliged to give me possession till such time as they lease the property to him?