A thick layer of foam was seen floating on the Yamuna River near Delhi's Okhla Barrage for the second consecutive day, with froth spreading towards Kalindi Kunj ahead of Chhath Puja. The recurring pollution problem has raised fresh concerns over the river's water quality, even as the Delhi government highlights ongoing projects worth crores aimed at cleaning and rejuvenating the Yamuna. NDTV brings you a ground report from Okhla, where foam continues to cover stretches of the river ahead of the festivities.