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Natural and anthropogenic interferences do hinder channel equilibrium, often resulting into channel adjustments. Among the natural factors, tectonic settings, climate, composition of riverbank, fluctuations in base level are responsible for controlling river morphology. Anthropogenic activities like channelization, river engineering, change in land use result in drainage disruption, channel realignment with meander obliteration. Anthropic changes in the upstream do change bedload causing floods too. Channel shifting is commonly observed in the alluvial rivers. Also, channel oscillation, avulsion and abandonment are present in all the physiographic zones of West Bengal. Up country diversion of water, clogging of offtakes have resulted in reduction in discharge degenerating the distributaries of Ganga in the last 225 years. Reduction of channel capacity arises due to their natural decay or tidal silting which is aggravated by human interference \cite{Bandyopadhyay2014}. The three river systems of Indian Sundarban -- Adi Ganga, Bidyadhari, Ichhamati systems are in jeopardy with decayed stretches leading to sediment starvation in an already retrograding situation. These river systems are at present severed from their upcountry sources. The deltaic distributaries of Ganga -- Bhagirathi, Bhairab, Jalangi, Mathabhanga donot receive water from river Ganga during the lean seasons. The offtake points have already decayed over a century and the main flow of Ganga is diverted towards Padma. This phenomenon leaves the three river systems of Indian Sundarban severed from freshwater sources, only to be maintained by tides. This study aims to chart out a programme for revival of these three river systems of Indian Sundarban through excavation of the former drainage lines and identification of probable alternative routes through an analysis of SOI toposheets (base years 1918,1922-23, 1968, 1993) and Google Earth imageries of 2025-26.