Confusion while selling options which are purchased more than the freeze Quantity

Iceberg/Reserve order can be used for achieving this but as @Gautam mentioned this isn’t available in Zerodha Kite (should be achievable using their API. Check Kite Connect 3 / API documentation and Kite Connect developer forum).

Interactive Brokers does provide this order type (404 Page Not Found | Interactive Brokers).

To learn more about how Iceberg orders work, refer to the thread below