cancellation of the lease because the information was provided during the subsistence of the terms of the lease with a request to extend the lease in favour of the original petitioner, who was the wife of late Dr. P.K. Banerjee. The cancellation of lease on the ground that the details of legal heirs of the deceased were not provided by the original writ petitioner is illegal as a lease cannot be terminated on such ground. After the death of her husband and during subsistence of the lease period, the respondents have been informed that the original lease holder has died and the details of legal heirs were also provided to the respondents. Moreover, no term of lease deed has been violated by the legal heirs of the original lease holder and if the respondents consider that the details of the legal heirs was provided after a delay, the same cannot be a ground for cancellation of the lease deed as there is no violation of the terms of the lease deed. Further, from perusal of clause 10 of the renewed lease deed, it appears that the lease was for unlimited period which was to be renewed after every 30 years. In the opinion of this Court, a lease can only be cancelled if there is any violation of terms of the lease. When the lease in effect a perpetual lease, the petitioners cannot be forcibly evicted or the possession of the lease cannot be taken without an order passed