Sonia, whose party together with NCP ruled Maharashtra for 15 years, wondered with whom will the former partner ally after the October 15 Assembly polls.
"Till yesterday, they (NCP) were with us. I want to alert you. Tomorrow they may align with anyone. Their only goal is kursi (power)," she said, addressing a poll rally at Aurangabad, apparently refusing to buy NCP Chief Sharad Pawar's contention that his party will forge partnership with only a secular entity.
"Today, BJP and Shiv Sena criticise each other. BJP promises to bring you the moon but forgets it after elections," she said.
Earlier, addressing a rally at Kolhapur, she said BJP and Shiv Sena might have parted ways but in reality they are one.
"Their aim is to spread hatred in society. Don't get swayed by BJP, which changes masks. Opportunist parties like BJP and Shiv Sena can do anything for power. They may look separate but in reality they are one," she said.
"When Rajiv Gandhi began the IT revolution, these people opposed him," she said.
Citing achievements of Congress, she said, "India went to the moon and we also became a nuclear power."
She said the Narendra Modi government was carrying forward schemes of the erstswhile UPA government despite BJP having ridiculed them earlier.
"They ridiculed schemes of Congress government but are going ahead with the same schemes," she said.
