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 29 June 2012 were:

137.70p Capital only (undiluted)
137.17p Capital only (Diluted for treasury shares)
140.89p Including current year income (undiluted)
139.91p 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.