 The party fragmented again during the regime of Hussain Muhammad Ershad in the 1980s, with ASM Abdur Rab and Shajahan Siraj heading two separate factions.Abdur Rab's faction, Jatiya Samajtantrik Dal-JSD, became the opposition after taking part in the 1988 elections that were boycotted by all major political parties.After the "Bangladesh Nationalist Party (BNP)" came to power in 1991, Jatiya Samajtantrik Dal allied itself with former rivals Bangladesh Awami League to counter growing BNP and right wing influence in the country.