The car driven by his driver Ravinder was stopped by the armed abductors near the Ganganagar police post and Mahajan along with his driver was kidnapped, police said.
Shortly afterwards, the kidnappers made a ransom call from Mahajan's mobile to the family demanding Rs. 2 crores.
Mahajan's car was found abandoned in Mawana area.
SP (rural) RP Pandey said they have found some clues and are hopeful of recovering the trader soon.
Traders in the city have expressed concern over the kidnapping and warned of protests if Mahajan was not recovered safely.