New Delhi, Sept. 19 -- The monsoon appears to have retreated from the north and north-west India as hot and humid conditions are expected to continue for the rest of September that is expected to be dry, weather experts said. They blamed the monsoon trough travelling from the Bay of Bengal towards the westerly direction instead of the usual north-westerly for this. The sultry conditions are likely to continue for another 10 to 13 days till the monsoon fully withdraws from the region without any rain, ushering pleasant autumn....