The correct answer is: c) Gambhir Singh.
Gambhir Singh (1782-1834) was the king of Manipur from 1821 to 1834. He was the son of Maharaja Bhagyachandra and Queen Ema. Gambhir Singh was a great warrior and expanded the Kangleipak kingdom through the conquest of smaller states. He also built a strong army and navy.
Garib Niwaz (Pamheiba) (1709-1748) was the king of Manipur from 1709 to 1748. He was the son of Maharaja Meidingu Pamheiba. Garib Niwaz was a great patron of art and literature. He also built many temples and palaces.
Marjit Singh (1812-1850) was the king of Manipur from 1844 to 1850. He was the son of Maharaja Gambhir Singh. Marjit Singh was a weak ruler and the kingdom declined during his reign.
Churachand Singh (1859-1941) was the king of Manipur from 1891 to 1941. He was the son of Maharaja Chandrakirti Singh. Churachand Singh was a wise ruler and the kingdom prospered during his reign.
Gambhir Singh was the most successful of the four kings in expanding the Kangleipak kingdom. He conquered many smaller states and brought them under his rule. He also built a strong army and navy, which helped to secure the kingdom’s borders.