Kunika Lal had an argument with Baldev Khosa when they met at a condolence meeting for the late Congress leader Vilasrao Deshmukh last evening, but the matter appeared to have been resolved.
Baldev's son Siddharth, however, allegedly went to Kunika Lal's Oshiwara residence this morning and threatened to kill her, police said, adding they have registered a non-cognisable offence against Siddharth.
Badev Singh has apologised for the misbehaviour of his son and claims that the matter is over now.
Kunika Lal is a Congress member.
Meanwhile, Siddharth Khosa has claimed that matter has been blown out of proportions. He claimed that he never used threatening language against the actress.
Kunika, 52, has done character actor roles in Mr India, Gumrah, Yeh Dooriyan, Page 3, Andaaz and several other films, She has also acted in TV serials like C.I.D., Sanjog Se Bani Sangini, Dollar Bahu and several others.