A Spicejet Boeing 737-800, registration VT-SGH performing flight SG-705 from Varanasi to Hyderabad (India), was taxiing for departure when the aircraft inadvertently crossed the hold short line before the runway. The crew stopped the aircraft about 10 meters past the hold short line. An Indigo Airbus A320-200, registration VT-IHS performing flight 6E-3175 from Varanasi to Delhi (India) with 178 passengers and 5 crew, was cleared for takeoff and was accelerating for takeoff when tower noticed the Spicejet crossing the hold short line and instructed the Indigo Airbus to reject takeoff. The crew rejected takeoff at low speed and stopped their aircraft safely. The A320 returned to the apron for checks and departed with a delay of about 1.5 hours. The B738 departed shortly afterwards and reached Hyderabad on time. India's DGCA is looking into the occurrence.