Delhi Chief Minister Arvind Kejriwal on Monday said recycling and recharge are solutions to the groundwater depletion in the country and said his government and the Centre are working together on a massive groundwater recharge programme for the national capital. Kejriwal, along with Union Jalshakti Minister Gajendra Singh Shekhawat, laid the foundation stone for India's largest sewage treatment plant (STP) in Okhla. During the event, speaking on the groundwater depletion in the country, Kejriwal said Delhi does not have its own source of water. "There are only two solutions before us at this juncture: water recycling and recharge. Delhi's population is growing very rapidly and we do not have our own source of water. Together with the Centre, we are working on a massive groundwater recharge programme on the floodplains of the Yamuna." He thanked the Central government for its support and said Delhi's problem of multiplicity of agencies can be overcome when "we all work together"