Manmohan a great man, a good leader, liked him not just because he was a friend: Amartya Sen
The eminent intellectual, who had been a close friend of Singh for around seven decades since his days in Cambridge, also lauded Singh for his ability to grab the essence of Gautama Buddha's message in Vajracchedikā Prajñāpāramitā Sūtra that stresses on need for human beings to recognise the existence of different faiths.