Amar Ujala — 2000 करोड़ की कंपनी खड़ी कर इस शख्स ने दुनिया में बजाया डंका

Amar Ujala's success-stories feature documents Kunwer Sachdev's business journey, his innovations in plastic-body and sine-wave inverters, and Su-Kam's growth into a globally recognised brand.