Shama or Shamaa is another highly used word in Hindi songs. Shama is an Urdu word which means a candle or a lamp that burns.
Also, many times with Shamaa, Parwana is also used. Parwana is a butterfly, or a moth. In these songs where a 'Parwana' is ready to burn in a 'Shama', Parwana basically means moths who generally keep flying near lamps/ candles and get burned by them.