This field excursion explores the Quaternary geological landscapes of Northwest India, with a focus on salt lakes (Sambhar, Didwana, Lunkaransar) and the palaeochannel of the Saraswati River. Participants will also explore saline lake systems and their relevance to paleoclimate, planetary science and human settlement patterns. The trip includes a visit to Kalibangan, a key Harappan site, to understand the civilization-river relationship. Emphasis will be placed on tectonic and climatic influences that reshaped the region’s river systems.