@Moderator_1 thanks, I understand your point, but I guess what I am looking for is "shares traded" as shown by NSE (https://www.nseindia.com/reports-indices-historical-index-data) for the indices. I think that'd be a more useful value for volume than 0.
Thanks btw, rest of the APIs work great!

@Moderator_2 I'm able to fetch historical data for NIFTY50 and other indices, but the volume comes as 0. Is this something you are fixing?

@admin, nvm I tried it out and I see that we need to cancel the main order (though it's status is complete).

@admin If it allows cancelling like this then how will the system perform auto-squareoff at 3:10PM, in case I cancel the open legs of the ROBO order but forget to place the reverse order to close the open position (or the reverse order placement fails for some reason). I think the system should not allow cancelling the two open orders for this reason and we need a "close order" API to atomically/correctly do this.

@admin Related question, how do we do this for a ROBO order where the main order is completed and the two sub-orders are not. Basically this is like squaringoff the order. Unlike the given example, though we can place a new order but we have to cancel the two sub orders, cancelOrder fails.

nvm, I gather that this is the amount of pending buy and sell orders at the Exchange.

What is total_buy_quantity and total_sell_quantity?
When are they different? I mean whatever is bought is sold as well. Thanks.

@dharm change the function as following

@staticmethod
def _parse_token_value(binary_packet):
    token = ""
    binary_packet = binary_packet.decode("UTF-8")
    for i in range(len(binary_packet)):
        if binary_packet[i] == '\x00':
            return token
        token += str(binary_packet[i])
    return token