AMFI - Association of Mutual Fund of India release monthly data of sale, purchase & redemption of different category of Mutual fund at this link
For the month of September AUM of Equity Schemes (Excluding Arbitrage Fund) is 6.63L crore compared to 7.13L crore in Aug-18.
so, the data suggest an overfall of AUM in Equity mutual fund schemes in September 2018.
AMFI also release net inflow/outflow into various schemes. Below is net inflow data for month of September-18 in Equity Scheme
I could not understand if there is net inflow of funds in Equity category of Mutual funds, how AUM is showing a net decrease?