Net Asset Value(s)

NET ASSET VALUE

BLACKROCK INCOME AND GROWTH INVESTMENT TRUST PLC.

The unaudited net asset values for BlackRock Income and Growth Investment Trust
plc at close of business 13 July 2012 were:

140.07p Capital only (undiluted)
139.52p Capital only (Diluted for treasury shares)
143.25p Including current year income (undiluted)
142.26p Including current year income (Diluted for treasury shares)

Notes:

1. The Company has 2,379,268 ordinary shares in issue excluding 4,554,664 shares held in treasury.

2. Investments have been valued on a bid price basis.

3. Revenue items included in net asset value, with dividends payable deducted
on the ex-dividend date.