When the chauffeur driven car slowed down at Agiathori area, a man on a motorbike wearing a helmet that covered his face broke window pane of the car and shot her from close range, police said.
Her driver rushed her to a nearby hospital where she was declared brought dead.
The driver has been detained for questioning, police said adding that the cause of the attack is not immediately known.
Search for the assailant has been launched.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)