Branch Offs: Mumbai (Ph: 022-25678027/28/29/30); (2) Chennai: (Ph: 044-28241797/28221271); (3) Delhi (Ph: 011-23275571/7026); (4) Kolkata (Ph: 033-22267546/22264443); (5) Secunderabad (Ph: 040-27506239). Mfr: Semiconductor Devices Custom-Made Power Electronic And Rectifier Equipments Including Various Dc Power Sources Constant Current Regulators Battery Chargers Plate Forming Rectifier And Regenerative Dischargers For Battery Manufacturers And Battery Users Various Kinds Of Rectifier Transformers And Pulse Plating Rectifiers. Chmn& Md: S.K. Nevatia.