The embattled premier's legal team was supposed to present its case by Friday but asked for a 45-day extension because of the amount of evidence it needed to collect, the country's National Anti-Corruption Commission (NACC) said in a statement.
They were granted a shorter extension of 15 days, starting from Friday, the statement said.
The NACC filed charges against Yingluck in February, saying she had ignored warnings that a rice subsidy scheme was fostering corruption and causing financial losses.
The rice scheme, which guarantees farmers above-market rates for their produce, has become a lightning rod for anger among anti-government protesters.
They say it has encouraged corruption, drained the public coffers and left the country with a mountain of unsold stock.
The government has faced months of mass protests calling for Yingluck to step aside in favour of an unelected "people's council" to tackle what opponents see as a culture of money-driven politics.
The backdrop is a longstanding struggle between a royalist establishment, backed by the judiciary and the military, and Yingluck's billionaire family which has strong support in the northern half of Thailand.
Her administration has limited caretaker powers because opposition demonstrators disrupted a general election last month.
The authorities have also suffered a series of legal defeats by the courts, which have been accused by government supporters of colluding with the opposition to try to oust Yingluck.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
