Delhi also known as Shahjahanabad, the walled city built by Shah Jahan from 1638 to 1649, containing the Lal Qila and the Chandni Chowk. It was the capital of the Mughal Empire during Shah Jahan's reign. ... Lutyens' Delhi or New Delhi, the city built by the British on the south-west, declared Capital on 12 December 1911.Founder of Delhi - Qutb al-Din Aibak, a former slave of Muhammad Ghori, was the first sultan of Delhi and his dynasty conquered large areas of northern India. Afterwards, the Khilji dynasty was also able to conquer most of central India, but both failed to conquer the whole of the Indian subcontinent.City of New Delhi - The foundation stone of the city was laid by George V, Emperor of India during the Delhi Durbar of 1911. It was designed by British architects, Sir Edwin Lutyens and Sir Herbert Baker. The new capital was inaugurated on 13 February 1931, by Viceroy and Governor-General of India Lord Irwin.