503 Signal Unit
Motto : Satatam Tatparah (Always Alert) Date Raised : 1964-08-26 Location : Arjangarh
Formed on 26 Aug 1964 as the 503 SU under the command of Gp Capt Kanwar Singh. It is based at AFS Arjan Garh. Initially operated the Star Sapphire radar, It requipped to the THD1955 radar in Sept 1985. It was briefly renumbered to 54 SU before reverting back to 503 SU.
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