Sangrur, Barring SAD (Amritsar), no political party has announced its candidate for the Dhuri Assembly by-election. Its candidate Surjit Singh Kalabula is a member of the SGPC. The filing of nomination papers begins from March 17.Besides the SAD-BJP alliance and the Congress, AAP has also not announced its candidate. The Left parties have also not announced their candidates. Though Dr Joginder Dayal of the CPI recently said they might support SAD (Longowal) candidate.Sources said the SAD (Longowal) candidate Gaganjeet Barnala, general secretary of the SAD (Longowal) and son of former Chief Minister Surjit Singh Barnala, might contest the by-poll. They said all the opposition parties, including the Congress, might support him.Barnala declined to comment on the issue, but said most opposition parties were ready to contest on one platform. Punjab Pradesh Congress Committee (PPCC) chief Partap Singh Bajwa said it would announce its candidate by Tuesday.In the SAD, several persons are in the race to contest the by-poll. Sources said some of the possible candidates were former minister Gobind Longowal, Gagandeep Kaur Dhindsa, Finance Minister Parminder Dhindsa’s wife, and Amanveer Singh Cheri, a close relative of secretary general of the SAD, Sukhdev Singh Dhindsa. However, Sukhdev Dhindsa had declared that no one from his family would contest the Dhuri by-election.