these are the sounds found in most native Bengali dialects:
there are also sounds not on the chart

Other sounds:
a labio-velar central approximant [w]
voiceless stops can be aspirated; voiced stops can be breathy voiced
a voiced mid central palatal approximant
a voiced mid central labial-velar approximant
vowels can be nasalized

(from: Maddieson, I. 1984. Patterns of Sounds. Cambridge: Cambridge University Press.)