The process of shortlisting senators by a military regime panel will not be difficult, according to Deputy Prime Minister Wissanu Krea-ngam.
They are likely to be recruited from members of various bodies who were appointed by the junta and from specialists in various professions, he said.
Mr Wissanu said 400 Senate candidates will be shortlisted by the recently established panel headed by Deputy Prime Minister Prawit Wongsuwon. The names will be presented to the National Council for Peace and Order (NCPO), which will pick 194 senators from among the candidates, with 50 candidates in reserve.
The six remaining seats are to be occupied by the armed forces leaders, the supreme commander, the defence permanent secretary and national police chief.
Altogether, there are 250 senators.
The remaining 50 will also be chosen by the NCPO from among 200 candidates who have already been shortlisted in a process supervised by the Election Commission.
Mr Wissanu said he expects thousands of names to be considered, drawn from the National Legislative Assembly as well as defunct bodies such as the National Reform Council and National Reform Steering Council.