"Our party is ready to fight the hurdles that will emerge in the days ahead in successfully conducting the poll.
"Our way of working will be different now on," Mahara said.
The Maoists, who fought a 10-year insurgency against the government, in which more than 13,000 people died, agreed to rejoin the interim coalition government last week.
The reconciliation came only after the seven main political parties agreed to abolish the country's 239-year-old monarchy immediately after elections now scheduled for April.
The Maoists had withdrawn their political involvement in September demanding electoral reform and the removal of the king.
The government then postponed elections which had been planned for November.