LUCKNOW, July 25 -- The India Meteorological Department (IMD) on Saturday forecast widespread heavy to very heavy rainfall across Uttar Pradesh from Monday as monsoon activity is expected to intensify. The weatherman said monsoon activity would remain subdued until Sunday.

"With the weakening of the low-pressure area causing the monsoon trough to shift rapidly northward, and the strengthening of a low-pressure area over the northwestern Bay of Bengal leading to increased monsoon inflow from the Bay of Bengal, monsoon activity is expected to intensify again across UP from July 27," said Atul Kumar Singh, senior scientist at the Regional Meteorological Centre, Lucknow.

As monsoon activity weakened over the past few days, the state's rainf...