JUDGMENT

N.V. RAMANA, J.

This appeal arises out of the impugned order dated 3rd December, 2010 passed by the Armed Forces Tribunal, Chandigarh, Bench at Chandimandir in OA No.837/2010 whereby the tribunal allowed the Respondent’s application for grant of disability pension.

2. The undisputed facts of the case are that the respondent herein was enrolled in Indian Air Force on 13th November, 1971 in the Clerical trade. At the time of his recruitment, the respondent was medically and physically examined by the concerned medical officers and was found fit as per prescribed standards in medical categorization known as SHAPE-I. On 17th July, 1987, during the period of his service in Indian Air Force, the respondent was admitted to the Commando Hospital (Air Force), Bangalore where he was diagnosed for coronary artery disease namely Infero-lateral Myocardial Infraction (1st disability). The respondent was therefore placed in Low Medical Classification from September, 1987. As a result of deterioration of health due to aggravation of ailment, the respondent was again downgraded and placed in the medical classification A4 G3 (Permanent). While the respondent was discharging his duties at 2