Mr Suthep, secretary-general of the People's Democratic Reform Committee (PDRC), took to the stage at Lumpini Sunday and told protesters that there were not many people at the voting stations.
"There were only 16 to 17 people at some stations, especially those in the southern provinces of Chumphon, Surat Thani, Ranong, Krabi, Phuket, Songkhla, Satun, Yala and Pattani," said the former Democrat Party MP.
He said the Election Commission (EC) would not be able to announce the result because of the very low voter turnout.
The PDRC had not obstructed anyone from voting and did not intervene at polling units. The "great mass uprising", or muan maha prachachon, only interfered with the places where ballot papers were kept, he said.
"After the protesters emerge victorious, the PDRC will take legal action against Ms Yingluck for spending 3.8 billion baht without listening to other people who disagreed with holding this election," Mr Suthep said.