Home Minister Rajnath Singh on Saturday did an aerial survey to take stock of flood situation in Assam where death toll has gone up to 25. Accompanied by Chief Minister Sarbananda Sonowal, Singh reviewed flood-affected areas in Nagaon, Morigaon and Kaziranga. Rajnath Singh will also hold a high-level meeting with Sonowal, ministers of state departments concerned and senior government officials.