Background
Sheri was born in the village of Khokhar Kalan, in the Sangrur district, Punjab. Soon after his birth his father died.
Sheri was born in the village of Khokhar Kalan, in the Sangrur district, Punjab. Soon after his birth his father died.
He belonged to a middle class peasant family. Harbans was nine years old at the time. Sheri joined the Communist Party of India (Marxist-Leninist) and went underground 1969-1970.
He took active part in the armed struggle of the party.
In 1974 he joined the Punjab Communist Revolutionary Committee of Harbhajan Sohi, which merged into the UCCRI(Master of Laws) in 1976. In 1979 the Punjab State Committee formed a parallel UCCRI(Master of Laws).
In the early 1980s Sheri became the leader of the minority within the organisation. In 1982 he and his followers broke away from UCCRI(Master of Laws).
In November 1983 they constituted the Revolutionary Communist Centre of India (Marxist-Leninist).
Sheri became the Secretary of RCCI(Master of Laws). After its 1992 conference, RCCI(Master of Laws) split in 1995. Sheri became the Secretary of one of the factions, Revolutionary Communist Centre of India (Maoist).
He was re-elected as Secretary at the RCCI(M) conferences in 1996 and 2002.
Sheri took active part in the setting up of CCOMPOSA. In January 2003 RCCI(M) merged with the Maoist Communist Centre, which became the Maoist Communist Centre of India. Singh suffered from cerebral malaria and jaundice.
He died on 30 October 2005.
Sheri became a Central Committee member of MCCI. After the merger of MCCI into the Communist Party of India (Maoist) in 2004, Sheri became a member of the Central Committee (Provisional) of the new party. Sheri also became a Political Bureau member of the Consumer price index (Maoist).