"News of my meeting with Narendra Modi in New Delhi on January 17 appeared in a newspaper. (It) is completely mischievous, baseless & false," the Agriculture Minister said on micro-blogging site Twitter.
Pawar's tweets followed a front page report in a Marathi newspaper that the NCP chief is understood to have secretly met Modi in New Delhi on that day.
The newspaper report had claimed that the meeting had lasted nearly 30 minutes and that even senior leaders of the NCP and the BJP were not aware of it.
However, reflecting the unease in Congress-NCP ties in Maharashtra and apparently preparing for a tough bargain, Patel said Congress has delayed the seat sharing talks for "far too long" and the party was losing patience.
"But, we are losing patience because Congress is delaying alliance talks," he said, adding this was creating confusion.