From the following data about a government budget, find (a) revenue deficit, (b) fiscal deficit and (c) primary deficit.
`{:(, (Rs. " in arab")),((i) " Tax revenue", " " 47),((ii) " Capital receipts", " "34),((iii) " Non - tax revenue", " "10),((iv) " Borrowings", " "32),((v) " Revenue expenditure", " "80),((vi) " Interest payments", " "20):}`