Police said that Nayak Ram Swaroop Rajput (43), of 7 Assam Regiment, was going towards Lajwanti Chowk when his bicycle was hit by the speeding Audi near Kirbi Place at 10.30 am.
"Rajput sustained grievous injuries and was rushed to the Army's RR hospital where he succumbed to his injuries at around 1.30 pm," said a senior police officer.
Driver of the Audi Sarabjeet Singh, a resident of Ashram area, was arrested by the police and a case of rash and negligent driving causing death was registered against him, said the officer.
The deceased soldier is survived by his wife and a two-year-old daughter.