The Election Commission on Monday said the replies filed by Railways Minister Lalu Prasad, his wife and former Bihar chief minister Rabri Devi and Shiv Sena leader Uddhav Thackeray to the panel's notices on poll code violation were not satisfactory.
"The Election Commission did not find the reply satisfactory and have conveyed its strong displeasure," Deputy Election Commissioner R Balakrishnan told reporters in New Delhi.
On April 9, the poll panel had issued notices to Lalu Prasad and his wife Rabri Devi for poll code violations and asked them to send their replies by April 11.
Lalu Prasad is in the dock for his remarks at an election rally on April 6 that had he been the home minister "he would have run a roller over Varun Gandhi".
Lalu Prasad's remarks created a furore and the police had issued an arrest order against him. Bharatiya Janata Party leader Varun Gandhi is in a jail in Uttar Pradesh for his reported inflammatory speeches in Pilibhit district.
Rabri Devi was served a notice for her alleged derogatory remarks against Bihar Chief Minister Nitish Kumar and state Janata Dal-United chief Rajiv Ranjan at Saran.
Balakrishnan said the commission has rejected the contentions made by Thackeray, who at a election rally on March 20 in Mumbai, had referred to Prime Minister Manmohan Singh in a derogatory manner.
He said the poll panel has also asked the Maharashtra chief electoral officer to keep a track of the case filed against Thackeray in this context.