A Delhi court on Thursday sentenced all four convicted accused involved in the assassination of former railway minister Lalit Narayan Mishra to life imprisonment.
Delhi's Karkardooma court had convicted Ranjan Dwivedi, Santoshananda Avadhuta, Sudevananda Avadhuta and Gopalji in the case on December 8.
Over 200 witnesses, including 161 prosecution witnesses and more than 40 defence witnesses, were examined in the case.
Mishra was fatally injured in a bomb attack at the Samastipur Railway Station in Bihar on January 2, 1975, while inaugurating a new railway line. He died in hospital the next day.
All of the convicted accused were linked to the Ananda Marga group.
The charge sheet in the case was filed on November 1, 1977 in a CBI court in Patna. The case was shifted to Delhi in 1979 on a plea by the then Attorney General to the apex court.