India's oldest fort Qila Mubarak in Punjab dates back to 90 AD
While India is home to countless ancient citadels, its oldest surviving fort, Qila Mubarak, stands as a silent bystander in the lanes of Bathinda, the oldest city in the state of Punjab. Qila Mubarak has roots dating back to 90-110 AD, making it over 1,900 years old, and was originally constructed by Raja Dab of the Kushan Empire.