Chief of Air Staff air Chief Marshal b s Dhanoa today flew a sortie with Wing Commander Abhinandan Varthaman at Air froce Station  at Pathankot in a MIG-21 trainer. This was the last sortie flown by the Air Chief Marshal Dhanoa in a fighter aircraft before his retirement. They took off around 11.30 a.m. today for a 30-minute sortie.<br />''<br />''<br />