Land is scarce commodity in urban context. It is estimated that more than 10,000 hectares of urban land is locked in Indian dumpsites. Pune Metro Rail Project has been allocated one of such dumping site (Kothurd) to construct the depot for serving the East-West Corridor. The land area of Kothurd dumping site spreads over 12.2 hectares and predominantly filled with Municipal Solid waste heaped in 10 to 12 meters height, home for pigs, stray dogs and rodents. This area is also surrounded by the residential /commercial complex posing an environmental hazard to nearby residents. This article presents that how Maha-Metro, Pune Metro Rail Project has reclaimed a three decades-old garbage dumpsite with in-house effort and converted into state of art depot and unencumbered all nearby residents from ill effects of dumping site. Reclamation of kothurd dumpsite having huge quantities of decades-old garbage (aged waste or legacy waste) in an environmentally sound manner was a challenge. Maha Metro Pune Metro Rail Project took this challenge and formulated strategy for reclamation of this dumpsite. The emphasis was to conserve the virgin soil resource and to maximum reuse of earth soil to meet the backfilling requirement at various ongoing Metro Construction sites. Environment Management Division (EMD) of Pune Metro Rail Project has conducted some primary studies to understand the waste composition, organic content etc. and visited Mulund dumping site on 30.4.2019 to understand the aged/legacy waste reclamation process prescribed under Municipal Solid Waste Management Rules 2016. Primary studies on compositional analysis reveals that legacy waste consist 14 % biodegradable material, 39% recyclable (RDF- Paper card board, textile rags, plastic, rubber etc.). 8% recyclable (Non-RDF- glass metal etc.) and 39% Inert Construction & Demolition material. However, organic analysis of the waste reveals that waste was fully degraded and converted into soil like compost through natural process. The heavy metal analysis of legacy waste indicates that all the parameters are within the permissible limit (Schedule II, SWM Rules 2016) and could be effectively reused in gardening, landscaping, green belt development and median plantations. Further, the possibility of using the received soil in back filling was also explored and a lab test was carried out to understand the quality of soil. The result reveals that soil is meeting the quality criteria of IS standards can be effectively reused in backfilling at various ongoing Metro construction sites.