Rights of the tenant in case of receiving an eviction notice

The landlord wants to provide us with a 12 months' notice to evict but has not provided a reason.

We have advised him of the 4 reasons as per RERA in which he can do this and that he cannot rent the property to another tenant for 2 years if he proceeds with this.

He has ignored this and now asked to inspect the property next week. Obviously, as he has given notice we have to allow this. Where do we stand in protecting ourselves?

It is quite clear he wants us to leave as the rent in our area has increased significantly but the RERA calculator is not allowing any rental increase.