CRITL ( Central Relay & Instrument Testing Laboratory)
It is the specialized testing wing of JUSNL which carries out the testing of various equipments ( especially new equipments) installed at diffrent GSS throughout Jharkhand State. It looks after protection aspects of JUSNL system. CRITL also represents JUSNL in PCC monthly meeting of ERPC and ensures the compliance on directives/guidelines of PCC (Protection Coordination Sub Committee) regarding adherence to protection protocol in JUSNL system as standardized by ERPC.