The names of BSP MLA Jitendra Singh and local party leader Imtizar Abdi have been added in the FIR filed in connection with the arson at the house of UPCC chief Rita Bahuguna Joshi in Lucknow.
The names of the two leaders were added on Friday night on the basis of a complaint by Joshi and Congress General Secretary Subodh Srivastava, police sources said on Saturday.
Earlier, the FIR was filed against unidentified people.
The Congress had lodged a written complaint against the two BSP leaders for allegedly ransacking Joshi's residence in Lucknow and setting it on fire.
BSP had earlier accused the Congress of torching Bahuguna Joshi's house and trying to indict BSP for it.
The issue has been raging since Rita Bahuguna Joshi made disparaging remarks about UP Chief Minister Mayawati.