Ghaziabad Police arrested Ajay Tyagi, the contractor wanted in connection with the collapse of the gallery of Muradnagar crematorium which claimed 25 lives on Sunday. One of the four accused booked in this case, Tyagi was arrested late on Monday night hours after the Ghaziabad SSP announced a reward of Rs 25,000 in exchange for any information leading to his arrest. Watch what duties not fulfilled by officials?