Agra (U.P.), Jan 04 (ANI): The administration may very soon cap number of visitors and the visiting hours at Taj Mahal in Uttar Pradesh's Agra. The number of visitors will be restricted to 40,000 per day while visit duration will be of three hours at Rs. 50. The iconic marble mausoleum draws hundreds of thousands of visitors every year and the average footfall grows 10-15 percent every year.