National income = (iv) + (ii) + (i) + (vi) + (iii) - (vii)
= Private final consumption expenditure + Govt.final consumption expenditure + Net domestic capital formation + Net exports + [Net factor income from abroad - Net indirect taxes]
= 600 + 300 + 150 + 50 + (-20) - 90
= 1,100 - 110
N.I = Rs. 990 crore.