Agra, Oct. 13 -- For the past 48 years, thousands of people with asthma and other breathing problems have been thronging Gurudwara Guru Ka Tal here on the night of Sharad Poornima, anticipating a cure. They stay awake during the night, guarding a bowl of 'kheer' (rice cooked in milk) given with medicine mixed in it and consume it the next morning before sunrise....