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A masha is a traditional Indian unit of mass, now standardized as 0.97 grams (0.034 oz).
1 tola = 12 masha, 180 grains, or 11.6638038 grams (0.41142857 oz) P
4.5 masha = 8 ratti or 0.97 grams (0.034 oz)
Source of the article : Wikipedia