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 6 June 2012 were:

132.32p Capital only (undiluted)
131.79p Capital only (Diluted for treasury shares)
135.27p Including current year income (undiluted)
134.34p 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.