difference between gross investment and net investment in full detail
plzzz rplyy with concept of depreciation in it

Dear Jannat,
Gross Investment is the amount that is the increase in the stock of fixed assets. It is the estimate of Stock at end of the year - Stock at the beginning of the year.
Net Investment is calculated by subtracting Depreciation from Gross Investment. It is the actual addition to the capital stock of the economy.
Depreciation is the amount of total loss or fall in the value of fixed assets due to normal wear and tear and expected obsolescence.