New Delhi, Sept. 25 -- On the heels of the launch of Delhi's new drainage master plan last week, the Delhi Development Authority (DDA) on Wednesday invited bids for the reconstruction of two northwest Delhi drains-the first near Haiderpur Badli Mor Metro station and another adjoining the cremation ground in Ambedkar Nagar of Shalimar Bagh. Officials said the project is aimed at preventing waterlogging in the surrounding residential areas and transport hubs. The work, estimated at Rs.2.51 crore, carries a completion timeline of four months. "The work will include demolition of old brick and concrete drains, earthwork excavation, filling and compaction, relaying of cement concrete structures and construction of reinforced cement concrete (RCC...