N.K. Sondhi's first book was 'Management of Banking', which draws upon his experiences as a manager in the Punjab National Bank. He then turned to fiction writing, bringing forth the seen and unseen aftermaths of the partition of India in 1947 in his novel 'Cart full of Husk'. He followed it up with a short non-fiction, 'Forgotten City of Delhi (How Delhi became Delhi)'. He wrote his next book, 'A Match Made in Heaven: A 2000-year-old love story', based on the life of an Indian princess, who became first queen of Korea in 48 AD.Working with young people as he pursued social activities after his retirement, he sensed the restlessness among youngsters, who are facing a large number of problems due to stiff neck to neck competition in every field of life. Growing use of advanced technology has further alienated them from the main stream of the society.