Jio Phone is effectively free, while the new Airtel phones’ effective price starts at Rs. 1,799 HIGHLIGHTS The new Karbonn phones will compete against Jio Phone Karbonn A1 Indian comes at an ‘effective price’ of Rs. 1,799 Karbonn A41 Power at an ‘effective price’ of Rs. 1,849 Jio Phone is a looming threat for both phone makers and telecom operators, despite …