In what is seen as a setback for the ruling Congress, a senior Meghalaya lawmaker Alexander Hek and three other legislator are set to join the BJP today, ahead of the state assembly elections. Former health minister AL Hek, NCP's Sanbor Shullai and two Independents - Justine Dkhar and Robinus Syngkon - will officially be inducted into the Bharatiya Janata Party at a rally in Shillong this evening in presence of the BJP election in-charge and Union Minister KJ Alphons and the party's north-east in-charge, Ram Madhav, state BJP president Shibun Lyngdoh said.