Kumarsinghe, who holds the citizenship of Sri Lanka and Switzerland, had moved the apex court against a lower court's ruling which had disqualified her in May.
The 61-year-old United People's Freedom Alliance (UPFA) Member of Parliament was elected from southern district of Galle in 2015 general elections.
She was also a member of Rajapaksa's joint opposition group which challenged President Maithripala Sirisena's leadership in the Sri Lanka Freedom Party (SLFP).
The SLFP and Prime Minister Ranil Wickremesimnghe's United National Party (UNP) are coalition partners in the present unity government. The Rajapaksa backers had been demanding Sirisena to fire Wickremesinghe to form their own SLFP government.
The 19th Amendment, which became law just a few months ahead of parliamentary elections, bars a person holding dual nationality from being a candidate.
Kumarsinghe was allowed to contest the elections by returning officers under the 1981 Parliamentary Elections Act.
Holding that the provisions of 19th Amendment was applicable in the elections, the Court of Appeal overturned the returning officer's decision and unseated Kumarasinghe on the ground that she was an unsuitable candidate at the time of nomination.
Disclaimer: No Business Standard Journalist was involved in creation of this content
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
