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 25 June 2012 were:

133.94p Capital only (undiluted)
133.44p Capital only (Diluted for treasury shares)
137.14p Including current year income (undiluted)
136.19p 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.