In the fifth phase of polls on May 20, all eyes would be on Mithilanchal's two seats -- Madhubani and Sitamarhi -- which share international boundaries with Nepal. While NDA ally JDU banks on "Modi magic" to register its second consecutive victory in Sitamarhi, RJD is struggling hard to keep its support base among Yadavs in Madhubani to regain its lost political ground.