The MoU is to ensure SLFP support for Gotabaya at the elections scheduled for 16th of next month.
It was signed by SLFP General Secretary Dayasri Jayasekara and Gotabaya in Colombo this morning.
The latter termed it as a momentous occasion while Mr. Dayasri tweeted that it is a great moment in transforming the landscape of Sri Lanka.
Both parties had already agreed to form an alliance for the upcoming elections as well as the General elections expected early next year. SLPP is a breakaway group of SLFP, formed after defeat of Mahinda Rajapksa at the last Presidential elections.
President Maithripala Sirisena, who was leading the SLFP, has decided to quit the chairman post and remain neutral at the elections.
Former President Chandrika Kumaratunga has opposed alliance of SLFP with SLPP saying it has put SLFP future at stake. Mr. Gotabaya, a former defence secretary and brother of Mahinda Rajapksa is mainly pitted against minister Sajith Premadasa at the elections, being contested by record 35 candidates.