I'm not getting OI data values from the Market Depth API call for the option instrument. This is the response I'm getting from the API call.
{'d': {'NSE:BANKNIFTY23N1544400PE': {'totalbuyqty': 6209790, 'totalsellqty': 304455, 'ask': [{'price': 188.95, 'volume': 75, 'ord': 2}, {'price': 189, 'volume': 6990, 'ord': 8}, {'price': 189.05, 'volume': 210, 'ord': 2}, {'price': 189.1, 'volume': 60, 'ord': 3}, {'price': 189.15, 'volume': 195, 'ord': 1}], 'bids': [{'price': 188.7, 'volume': 180, 'ord': 2}, {'price': 188.6, 'volume': 375, 'ord': 5}, {'price': 188.55, 'volume': 30, 'ord': 2}, {'price': 188.5, 'volume': 465, 'ord': 9}, {'price': 188.45, 'volume': 270, 'ord': 3}], 'o': 180.5, 'h': 252.95, 'l': 125, 'c': 511.8, 'chp': -63.120359515435716, 'tick_Size': 0.05, 'ch': -323.05, 'ltq': 45, 'ltt': 1700022552, 'ltp': 188.75, 'v': 26483220, 'atp': 166.83, 'lower_ckt': 0.05, 'upper_ckt': 1843.7, 'expiry': '1700058600', 'oi': 0, 'oiflag': True, 'pdoi': 0, 'oipercent': 0}}, 'message': '', 's': 'ok'}