RANAWAT, J.

( 1 ) THIS is an application under Article 226 of the Constitution of India. The petitioners Nanagram and Ballilal are the owners of a shop in Johri Bazar of which the opposite party Ghinsi Lal is the tenant. The petitioners purchased this shop from Khavas Eala Baksh on the 30th of May, 1937 when the opposite party Ghinsilal was in possession of it as a tenant on a monthly rent of Rs. 55/- and after the purchase of the shop by the petitioners, Ghinsi Lal attorned in favour of the petitioners and executed a rent note on the 10th of July, 1937 stipulating to pay Rs. 65/-Jharsai per month. On the 11th of January, 1940, another rent note was executed by Ghinsi Lal by which the monthly rent was reduced to Rs. 50/- Indian Coin. The petitioners constructed a verandah in front of the shop on the 1st of November, 1943 at a cost of Rs. 1200/-and on the 26th March, 1948 the rent of the shop was increased to Rs. 70/- Indian Coin per month and a fresh rent note was executed by the opposite party. On the 15th of April. 1949. the petitioners served a notice on Ghinsi Lal, informing him of their intention to increase the rent of the shop to Rs. 130/- per month which was calcul