India, June 15 -- Operations of Aryan Aviation for the Char Dham Yatra have been suspended with immediate effect, Ministry of Civil Aviation said on Sunday after a helicopter of the company crashed in Uttarakhand's Rudraprayag, killing all seven people onboard.

"Preliminary indications suggest that the probable cause may be Controlled Flight into Terrain (CFIT), with the helicopter reportedly airborne despite poor visibility and extensive clouding at the valley entry area. The exact cause will be determined through a detailed investigation by the Aircraft Accident Investigation Bureau (AAIB)," the statement read.

Two helicopters belonging to M/s TransBharat Aviation-VT-TBC (PIC: Capt. Yogesh Grewal, CPL(H)-1453) and VT-TBF (PIC: Capt. J...