Harphul Singh Brar, J.

1. This revision petition has been placed before us for final decision on merits.

2. A petition Under Section 13 of the East Punjab Urban Rent Restriction Act, 1949 (hereinafter called the Act) was filed by the landlords Mohinder Singh and Kulwant Kaur for ejectment of Santa Singh tenant and Lt. Col. P.C. Verman, Sub-Tenant from 3/8th portion of the first floor of S.C.O. No. 17, Sector 17-E, Chandigarh. It is alleged in the petition that the said premises was let out by the landlords to Santa Singh on a monthly rent of Rs. 300/-. Originally the tenancy was for 11 months. Santa Singh had sublet the said portion to Lt. Col. P.C. Verman after constructing the said portion, which was against the terms and conditions of the tenancy. Santa Singh had impaired the value and utility of the premises materially by constructing the rooms on the said premises. Santa Singh was in arrears of rent for the period from April 1, 1974 to May 31, 1976 i.e. for 26 months amounting to Rs. 7800/-. A notice terminating the tenancy was served. The ejectment was claimed on the following grounds:

Firstly, that the tenant Santa Singh had sublet the portion of the building in disp