Sonia Gandhi writes to the PM on suspended IAS officer Durga Shakti Nagpal; NDTV exposes the rampant illegal sand mining in the Greater Noida area just a week after IAS officer Durga's suspension over what many believe was in fact a crackdown on the sand mafia; Ahead of the monsoon session, the PM reaches out to the opposition and says the government is willing to discuss all issues; and more in our news wrap of the day.