Palang Pracharath Party (PPRP) core member Somsak Thepsuthin said on Thursday that he expects the party to win at least 150 House seats in the general election.
Mr Somsak, who is in charge of the PPRP's campaign, said that the party's popularity is increasing and by the time the polls take place, it should be able to at least grab 120 seats from the constituency system and another 30 seats from the party-list system.
He contributed the increase in support to the party's efforts to further pursue the regime's policies, noting that the public now seems to have a better understanding about the government's schemes and their benefit for the country, and will reward it accordingly.
"We aren't aiming high at this point, but our mission to see through the government's work is one of the factors drawing support for our candidates. The people have started to realise what the government is doing for the country," he said.
Suthep Thaugsuban, a co-founder of the Action Coalition for Thailand (ACT) Party, expressed confidence the party would be asked to join the next coalition government.
While declining to say how many House seats the party would win in the election, he said the ACT would win significant votes from people who have become aware of the importance of "the people's party".
"People have become aware that they need a political party to serve as a tool and make their demands heard," he said.
Asked about his political stronghold in Surat Thani, he said he believed he can count on support of people in this southern province to vote for the ACT.
The former secretary-general of the Democrat Party played down criticism against the regime over the election map which is claimed to have been drawn in favour of the pro-military party.
He said the ACT was not interested in the drawing of the constituencies and that it did not stand to gain from the redrawn electoral map, but noted that by law the Election Commission (EC) must organise a fair and transparent election.
"The rest will be decided by the people," he said.
The regime came under heavy criticism after it issued an order giving the EC more time and immunity over the redrawing of the electoral map.
Some politicians and critics have labelled the map as an attempt by the regime to interfere with the election preparation process so that constituencies could be divided up to deliver maximum electoral benefits for the pro-regime party, which was widely understood to refer to the PPRP.