Thailand's Prime Minister Yingluck Shinawatra. Pic: AP.

Thailand’s National Anti-Corruption Commission (NACC) has indicted ex-prime minister Yingluck Shinawatra for dereliction of duty over her government’s ill-fated rice subsidy plan.

Yingluck, the sister of former PM Thaksin Shinawatra, was yesterday ousted by Thailand’s Constitutional Court over her involvement in the transfer of Nastional Security Council secretary Thawil Pliensri in 2012. The judges ruled that the transfer is considered “interference” and a “conflict of interest” that is “lacking in ethics and morals”.

NACC chief Panthep Klanarongran says it voted unanimously that there were enough grounds to indict her.

The case now goes before the Senate, which will decide whether to impeach YIngluck and ban her from politics for five years. Impeachment would require the support of three-fifths of the Senate and could take a number of months.

The rice subsidy program was a flagship policy of Yingluck’s administration that helped win the votes of millions of farmers. It accumulated losses of at least $4.4 billion and has been dogged by corruption allegations.