"The opposition has declared sit-in demonstration in front of the secretariat, but the BNP-led alliance government blocked the roads around the secretariat in a bid to foil our programme," she said on her arrival at Zia International Airport in the morning.

Hasina, also president of the Awami League (AL), returned home after a two-week visit to the United States for the treatment of her ears. She left Dhaka on March 16 for the United States and went to London from Washington on March 28.

She said the government has made successful the opposition's programme by slapping a ban on gathering near the country's civil administration hub.

Criticising the Wednesday's remarks of Prime Minister Khaleda Zia at the Rajshahi divisional rally of the BNP, Hasina said on one hand the government sends letter for discussion, but on the other it says the opposition's demand for electoral reforms is a pretext for creating an issue.

She said: "Khaleda Zia knows that without vote rigging they won't return to power. So, they are conspiring to rig the upcoming national polls."

"No free and fair election will be possible under the next caretaker government headed by Justice KM Hasan," Hasina said, adding, "So, the opposition wants to reform the caretaker government and the Election Commission."

She said Justice Hasan is a relative of a killer of Bangabandhu Sheikh Mujibur Rahman and felt embarrassed to conduct the Bangabandhu killing case.

Referring to the extension of the retirement age of the judges, Hasina said the government purposely extended the retirement age of senior judges.

Pointing to the Supreme Court's show cause notice upon the Chief Election Commissioner (CEC), Hasina said: "If the CEC has shame, he should immediately resign from his post."