Shimla, the hill queen, never had such a scorching summer in the past 150 years.Last Friday when the day temperature touched 32.4?C, the meterological department had to change its record, as Shimla had never had it so bad in the past 150 years."This is the highest-ever maximum temperature in the state capital since 1840 when the first observatory was set up at the Viceregal Lodge here," said Manmohan Singh, director of the local Meteorological Centre.Before this, the …