Net Asset Value(s)

BLACKROCK INCOME AND GROWTH INVESTMENT TRUST PLC.

The unaudited net asset values for BlackRock Income and Growth Investment Trust
plc at close of business 11 May 2012 were:

137.19p Capital only (undiluted)
136.54p Capital only (Diluted for treasury shares)
139.48p Including current year income (undiluted)
138.51p Including current year income (Diluted for treasury shares)

Notes:
1. Investments have been valued on a bid price basis.
2. Revenue items included in net asset value, with dividends payable deducted
on the ex-dividend date.