Differences between the AIS and Capital Gain/Loss (CGL) reports may arise due to:

1. Missing Purchase Details in CGL: Stocks sold without corresponding purchase details, such as those acquired via off-market transactions, Transactions done prior to November 11, 2012 through Navia, transactions done through another broker in your PAN or through IPOs, corporate actions (e.g., bonuses, rights issues, ESOPs), won't appear in the CGL report, but AIS will include these sales.
2. Buyback Discrepancies: AIS lists all shares offered for buyback, while CGL only shows accepted shares. The CGL report records the actual buyback price, whereas AIS may show the closing price on the buyback closure date.
3. Difference in Value: There can small difference in the value shown in AIS to the value shown in Capital Gains report. AIS calculates the value based on the Closing price for the day of the transaction while the Capital Gains Report shows the actual transaction price as per the contract issued to you by Navia.