 Complete the following phrase:  In 1986, Birkinshaw went to India where he directed an award-winning film on the life of Jawaharlal Nehru, entitled But I Have Promises To Keep, which had been commissioned by Rajiv Gandhi and was made for the Government of India via Doordarshan, the national television network of India. The film was supposed to take three months in production, but ended up taking a year and a half. Now residing in an apartment in Saket, a suburb of Delhi, Birkinshaw used his spare time to study ancient Indian civilisations and artefacts, and research into his favourite historical subject, the 