Websockets in Kite3 python client: Not able to subscribe to >500 tickers/run multiple connections

Problem Statement: I want to subscribe to 800 tickers.

Steps tried:

Step 1: Run supplied example with 500 tickers

import pandas as pd
from kiteconnect import KiteTicker, KiteConnect
import logging
logging.basicConfig(level=logging.DEBUG)

access_token = "my_access_token"
api_key="my_api_key"

instruments = KiteConnect(api_key=api_key, access_token=access_token).instruments(exchange="NSE")
instruments= pd.DataFrame(instruments)
my_tokens= list(instruments[:500].instrument_token.astype(int))

kws = KiteTicker(api_key=api_key, access_token=access_token)

def on_ticks(ws, ticks):
    logging.debug("1st row in Ticks: {}".format(ticks[0]))
    
def on_connect(ws, response):
    ws.subscribe(my_tokens)
    ws.set_mode(ws.MODE_FULL, my_tokens)

def on_close(ws, code, reason):
    logging.info("Connection closed: {code} - {reason}".format(code=code, reason=reason))

def on_error(ws, code, reason):
    logging.info("Connection error: {code} - {reason}".format(code=code, reason=reason))

def on_reconnect(ws, attempts_count):
    logging.info("Reconnecting: {}".format(attempts_count))

def on_noreconnect(ws):
    logging.info("Reconnect failed.")

kws.on_ticks = on_ticks
kws.on_close = on_close
kws.on_error = on_error
kws.on_connect = on_connect
kws.on_reconnect = on_reconnect
kws.on_noreconnect = on_noreconnect

kws.connect(threaded=True)

Step 2 : I tried to increase the number of ticker to 600 by changing only one line in the previous code:

my_tokens= list(instruments[:600].instrument_token.astype(int))

ERROR:kiteconnect.ticker:WebSocket connection lost: [Failure instance: Traceback (failure with no frames): <class 'twisted.internet.error.ConnectionDone'>: Connection was closed cleanly.
].
ERROR:kiteconnect.ticker:WebSocket connection lost: [Failure instance: Traceback (failure with no frames): <class 'twisted.internet.error.ConnectionDone'>: Connection was closed cleanly.
].
ERROR:kiteconnect.ticker:WebSocket connection lost: [Failure instance: Traceback (failure with no frames): <class 'twisted.internet.error.ConnectionDone'>: Connection was closed cleanly.
].

Step 3: I tried running two separate processes of KiteTicker.

my_tokens= list(instruments[:500].instrument_token.astype(int))

my_tokens= list(instruments[500:600].instrument_token.astype(int))

INFO:root:Connection error: 1006 - connection was closed uncleanly (WebSocket connection upgrade failed (429 - TooManyRequests))
INFO:root:Connection closed: 1006 - connection was closed uncleanly (WebSocket connection upgrade failed (429 - TooManyRequests))
ERROR:kiteconnect.ticker:WebSocket connection lost: [Failure instance: Traceback (failure with no frames): <class 'twisted.internet.error.ConnectionAborted'>: Connection was aborted locally, using.
].
INFO:root:Connection error: 1006 - connection was closed uncleanly (WebSocket connection upgrade failed (429 - TooManyRequests))
INFO:root:Connection closed: 1006 - connection was closed uncleanly (WebSocket connection upgrade failed (429 - TooManyRequests))
ERROR:kiteconnect.ticker:WebSocket connection lost: [Failure instance: Traceback (failure with no frames): <class 'twisted.internet.error.ConnectionAborted'>: Connection was aborted locally, using.
].
ERROR:kiteconnect.ticker:Try reconnecting. Retry attempt count: 1
INFO:root:Reconnecting: 1
INFO:root:Connection error: 1006 - connection was closed uncleanly (WebSocket connection upgrade failed (429 - TooManyRequests))
INFO:root:Connection closed: 1006 - connection was closed uncleanly (WebSocket connection upgrade failed (429 - TooManyRequests))
ERROR:kiteconnect.ticker:WebSocket connection lost: [Failure instance: Traceback (failure with no frames): <class 'twisted.internet.error.ConnectionAborted'>: Connection was aborted locally, using.
].

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