"Congress would form the government on its own without any allaince (with any other party)", she said in a late evening statement.
Earlier in the day, she had dodged a question about the possibility of a post-poll alliance with Arvind Kejriwal's Aam Admi Party if Congress falls short of majority the assembly polls.
"I will be able to answer the question when such a situation arises," she told reporters when asked whether Congress would take the support of AAP if it did not manage to get majority in the 70-member House.
"I am sure people will give a clear mandate. We are going to win the polls. We are working hard," she said.
"We have worked very hard in the last 15 years. So, I am confident of the people's support for Congress," she said.