The region has witnessed a lot of change since 1947. Tripura, Manipur, and Khasi Hills of Meghalaya were the erstwhile Princely States which merged with India after Independence. The entire region of the Northeast has undergone considerable political reorganization. The Partition of India in 1947 reduced the Northeast to a landlocked region and affected its economy. Cut off from the rest of India, the region suffered neglect in developmental terms.

Which of the following leaders signed a peace agreement with Laldenga which granted full-fledged statehood to Mizoram?

Rajiv Gandhi

Mizoram was a Union Territory before the peace agreement, but it implies that Mizoram gained full-fledged statehood as a result of the accord. At the end of two decades of insurgency, everyone was a loser.
Laldenga came back from exile in Pakistan and started negotiations with the Indian government. Rajiv Gandhi steered these negotiations to a positive conclusion. In 1986 a peace agreement was signed between Rajiv Gandhi and Laldenga. As per this accord Mizoram was granted full-fledged statehood with special powers and the MNF agreed to give up the secessionist struggle. Laldenga took over as the Chief Minister. This accord proved a turning point in the history of Mizoram. Today, Mizoram is one of the most peaceful places in the region and has taken big strides in literacy and development.