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 17 May 2012 were:

131.55p Capital only (undiluted)
130.96p Capital only (Diluted for treasury shares)
133.96p Including current year income (undiluted)
133.03p 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.