Hyderabad, Jan. 21 -- An independent panel of foreign experts and Central Water Commission (CWC) engineers monitoring the progress of construction of Polavaram major irrigation project being built on Godavari River in Andhra Pradesh, have raised a series of concerns in the construction of earth-cum-rock-fill (ECRF) dam, the most crucial component of the entire project, people familiar with the development said.

The experts' team comprising David B Paul and Gias Franco de Cisco (both from USA) and Seas Hinsberger (from Canada), along with officials from various wings of the CWC, inspected the project works for the second successive day on Tuesday.

An irrigation department official said on condition of anonymity that the panel of experts ...