According to reports, the explosives were for Babbar Khalsa, a Sikh armed organisation.
Haryna Police sources also revealed that two newspapers with Jammu's dateline and an empty sweet box from a Jammu shop was also recovered from the car.
Police found a car laden with explosives, timer devices, RDX and detonators while on their routine check. The car was found at the Ambala Cantonment railway station parking area. Police have recovered at least 5 kg of RDX in the car.
Meanwhile, the NSG and NIA teams were rushed to the spot. The NSG will look into the nature of the explosives used.
Initial reports also suggest that the car could have come from Jammu and Kashmir and might have had a fake registration number.