New Delhi, Oct. 24 -- The Delhi government on Friday approved projects worth Rs.622 crore to strengthen the Capital's flood-control and drainage infrastructure, including a Rs.99-crore reinforced concrete wall along a vulnerable stretch of the Yamuna and three biomining projects worth Rs.260 crore to scientifically process and dispose of silt removed from drains.

The proposed wall, however, has drawn criticism from environmental activists, who warned that it could restrict the river's natural flow without addressing the underlying causes of rising flood risks.

The decisions were taken at the 40th meeting of the flood control board, chaired by irrigation and flood control minister Parvesh Singh at the Delhi Secretariat. The board also di...