supply of set of air filter for three phase propulsion equipment and control system for vande bharat train set. one set consist of four items , set of air filter for three phase propulsion equipment and control system for vande bharat train set. o ne set consist of four items: - (1) traction motor air inlet filter 1 medha part no sp675uv21067 qty-1 (2) traction m otor air inlet filter 2 medha part no sp675uv21068 qty-1 (3) traction motor air inlet filter 3 medha part no sp675uv 21069 qty-1 (4) traction motor air inlet filter 4 medha part no sp675uv21070 qty-1. [ warranty period: 30 month s after the date of delivery ] ]