Arrange the following events in a chronological order:

A- Rajiv Gandhi became the Prime Minister of India
B- Severe famine occurred in some parts of India
C- Sheikh Abdullah was reinstated as Chief Minister of Jammu & Kashmir
D- Sant Harchand Singh Longowal became President of Akali Dal

B-C-D-A

Laldenga (1937-1990) founded and led the Mizo National Front. Laldenga's transformation into a rebel leader was catalyzed by the severe famine of 1959. Frustrated by the inadequate response of the Indian government, he took up arms and led an armed struggle against India that persisted for two decades. This struggle aimed to secure greater autonomy and recognition of Mizo identity. 

Sheikh Mohammad Abdullah (1905-1982) was an influential leader in the context of Jammu and Kashmir, known for his unwavering dedication to the cause of autonomy and secularism in the region.Following Jammu and Kashmir's accession to India in 1947, Sheikh Abdullah assumed the role of Prime Minister for the state. However, he was dismissed and imprisoned by the Government of India for an extended period from 1953 to 1964 and again from 1965 to 1968. In a significant turn of events, Sheikh Abdullah was reinstated as Chief Minister of the State in 1974, following an agreement with the then-Prime Minister of India, Indira Gandhi.

Sant Harchand Singh Longowal (1932–1985) was a prominent figure in Sikh politics and religion. His journey in the political arena commenced in the mid-1960s when he emerged as a leader within the Akali Dal, a significant Sikh political party. In 1980, he ascended to the presidency of the Akali Dal. In July 1985 he reached an agreement with Prime Minister Rajiv Gandhi on key demands put forth by the Akalis.

Rajiv Gandhi (1944–1991) served as the country's Prime Minister from 1984 to 1989. He was the son of Prime Minister Indira Gandhi and entered active politics after 1980. During his tenure as Prime Minister, Rajiv Gandhi was involved in several crucial developments and policy initiatives.