His marksmanship and knowledge of all sorts of contrivances for making bullets amazed everyone in the camp of Lord Auckland when the governor general visited Maharaja Ranjit Singh in 1838. But the life of the promising young man was tragically cut short in his twelfth year. Both he and his father fell victims to intrigue. Maharaja Sher Singh was assassinated in the Shalamar Bagh by Ajit Singh Sandharivalia on 15 September 1843. The shots that killed Sher Singh were a signal for Lahina Singh Sandharivalia to pounce upon his son, Partap Singh, then being weighed in a garden near by against grain and silver to be given away in charity. Lahina Singh seized the young prince by the hair and cut him to pieces.
References :
1. Suri, Sohan Lal, Umdat -ut-Twankh. Lahore, 1885-89
2. Bhagat Singh, Maharaja Ranjit Singh. Delhi, 1990
3. Harbans Singh, The Heritage of the Sikhs. Delhi, 1983
4. Chopra, Barkat Rai, Kingdom of the Punjab. Hoshiarpur, 1969