The Samagi Jana Balavegaya (SBJ) party main office was opened a short while ago by SBJ leader Sajith Premadasa. The main office is situated at E.W Perera mawatha, Ethulkotte. Following the opening religious observances were carried out to mark the occasion. A final decision on the election symbol of the new alliance will be taken today, Premadasa said yesterday addressing a public meeting in Nittambuwa.