Investigators said Mishra allegedly drove the vehicle across state borders before taking it to an abandoned location near the Barasat rail gate, where the original number plate was replaced with a fake registration plate.
The development comes a day after the West Bengal Police SIT arrested three alleged sharpshooters in connection with the murder and produced them before a district court in Barasat, North 24 Parganas. The court remanded the accused to police custody till May 24.
The accused were brought to Kolkata on Sunday night and are scheduled to be produced before a district court in Barasat, North 24 Parganas, on Monday, where investigators are expected to seek police custody for further interrogation.
"He was killed because he was my aide and I defeated Mamata Banerjee in Bhabanipur. This could be the reason for his murder," Adhikari told reporters in North 24 Parganas.
Chandranath Rath, a close aide of Adhikari, was gunned down by unidentified assailants on Wednesday night.
