Delhi

Shahjahanabad, colloquially known as Old Delhi, is a region in the Central Delhi district of Delhi, India. It was founded as a walled city and officially named Shahjahanabad in 1648, upon Shah Jahan's decision to shift the imperial Mughal capital from Agra. The construction of the fortified city was completed in 1648, and it remained the capital of Mughal India until its fall in 1857, when the British Empire took over as paramount power in the Indian subcontinent. After the inauguration of New Delhi as the capital of India, the locality started to be colloquially known as Old Delhi in order to distinguish it from the capital city, or the rest of the National Capital Region.