The Ambala Lok Sabha constituency in Haryana is poised for a tough contest between the BJP's Banto Devi Kataria and the Congress's Varun Chaudhary on May 25. Kataria, widow of former MP Rattan Lal Kataria, hopes to retain the seat, leveraging BJP's welfare schemes and PM Modi's popularity. Chaudhary, a sitting MLA and son of veteran leader Phool Chand Mullana, focuses on local issues and Congress's manifesto. The farmers' protests and recent leadership changes could influence the outcome.