New Delhi, July 28: Former prime minister Manmohan Singh on Monday condoled the death of A.P.J Abdul Kalam, saying he “greatly benefited from his advice as president of the country”. Also Read - Man Builds Special Robot to Take Care of Disabled Dog in Lucknow

“I have learnt with profound sorrow about the demise of Dr. A.P.J. Abdul Kalam. In his death, our country has lost a great human being who made phenomenal contribution to the promotion of self reliance in defence technologies. Also Read: A.P.J Abdul Kalam, former Indian president passes away Also Read - Beware of FDI-'Foreign Destructive Ideology', Warns PM Modi; Quotes Manmohan Singh Over Farm Laws

“I worked very closely with Dr. Kalam as prime minister and I greatly benefited from his advice as president of our country. His life and work will be remembered for generations to come,” Manmohan Singh said in a statement. Also Read - Pranab Mukherjee's Book Blames Sonia Gandhi, Manmohan Singh For 2014 Poll Debacle

Kalam, who was India’s president from 2002 to 2007, died in a Shillong hospital. He was delivering a lecture at the IIM-Shillong when he suddenly collapsed, officials said. Doctors said Kalam suffered cardiac arrest.