As a Commodore, Dhingra was appointed Commodore Commanding Submarines (West) (COMCOS (W)). As COMCOS, he also dual-hatted as the Commanding OfficerINS Vajrabahu, and commanded the 10th submarine squadron and the 11th submarine squadron. He subsequently served as the Principal Director Submarine Operations at naval headquarters.[7]
Flag rank
Dhingra was promoted to flag rank and was appointed Flag Officer Commanding Tamil Nadu & Puducherry Naval Area (FOTNA). As FOTNA, he is responsible for the operations and administration of all units and establishments in Tamil Nadu and Puducherry.[2]