( 1 ) THIS revision petition under Section 25b (8) of the Delhi Rent Control Act, 1958 (hereinafter REFERRED TO to as the Act ) is directed against the judgment and order of the Rent Controller dated 30th September, 1980 dismissing the petitioner s application for leave to defend and passing an order of eviction against him. Briefly the facts are that Jaswant Singh is the owner of the property No. 8-10, Nizamuddin (West), New Delhi. First floor of this property was let out in 1974 to Bharat Heavy Electricals Ltd. of which the petitioner, D. N. Gupta was Deputy Personal Manager and he was in occupation of the premises on behalf of the company. He retired in 1978. The respondent accepted the petitioner as a tenant in his own right on the first floor of the said property with effect from 1st July, 1978 in terms of a rent note for a fixed period of 11 months on a monthly rent of Rs. 600. 00. The petitioner renewed the tenancy for further period of II months by executing another rent note dated 1st June, 1979. The petitioner alleges that there were negotiations for renewal of tenancy in May, 1980, but they did not materialise. On 15th May, 1980 the respondent served a notic