New Delhi, Aug. 9 -- India Meteorological Department (IMD) on Saturday issued an orange category warning, which means disaster management authorities should be prepared to avert any possible disasters, for parts of northwestern India for Sunday and Monday as the monsoon trough is likely to shift northwards and cause heavy to very heavy rain in Uttarakhand, Haryana, Chandigarh, Delhi, western Uttar Pradesh, eastern Rajasthan....