NI = (ii) + (vi) + (iii) + (vii) - (ix) - (viii)
= Private final consumption expenditure + Govt final consumption expenditure + Net domestic capital formation + Net exports - [Net factor income paid to abroad + Net indirect taxes]
= 400 + 200 + 100 + 40 - [10 + 80]
= 740 - 90
National income = Rs. 650 crore.