Not receiving postback

curl --location 'https://api.kite.trade/orders/regular' \
--header 'Authorization: token ******' \
--header 'X-Kite-Version: 3' \
--header 'Content-Type: application/x-www-form-urlencoded' \
--header 'Cookie: _cfuvid=Vwefqbs.9fj8ONqml2DVfONeWi3IuQP.exZTK6fqsQM-1685768307344-0-604800000' \
--data-urlencode 'tradingsymbol=VEDL' \
--data-urlencode 'exchange=NSE' \
--data-urlencode 'transaction_type=BUY' \
--data-urlencode 'order_type=LIMIT' \
--data-urlencode 'quantity=1' \
--data-urlencode 'validity=DAY' \
--data-urlencode 'variety=regular' \
--data-urlencode 'product=CNC' \
--data-urlencode 'price=280'

I have placed an order using apiKey . I was expecting a postback response from zerodha on execution of order. But I did not received any. My postback URL is :
https://www.goveca.com/api/v1/kite/trade/callback. Can you please respond to it ?

I tried to hit reqesut manually on postback url and I am reveing a response :
curl --location 'https://www.goveca.com/api/v1/kite/trade/callback' \
--header 'api_key: 4l3z9me25bgm0p1a' \
--header 'Content-Type: application/json' \
--data '{
"user_id": "AB1234",
"unfilled_quantity": 0,
"app_id": 1234,
"checksum": "2011845d9348bd6795151bf4258102a03431e3bb12a79c0df73fcb4b7fde4b5d",
"placed_by": "AB1234",
"order_id": "220303000308932",
"exchange_order_id": "1000000001482421",
"parent_order_id": null,
"status": "COMPLETE",
"status_message": null,
"status_message_raw": null,
"order_timestamp": "2022-03-03 09:24:25",
"exchange_update_timestamp": "2022-03-03 09:24:25",
"exchange_timestamp": "2022-03-03 09:24:25",
"variety": "regular",
"exchange": "NSE",
"tradingsymbol": "SBIN",
"instrument_token": 779521,
"order_type": "MARKET",
"transaction_type": "BUY",
"validity": "DAY",
"product": "CNC",
"quantity": 1,
"disclosed_quantity": 0,
"price": 0,
"trigger_price": 0,
"average_price": 470,
"filled_quantity": 1,
"pending_quantity": 0,
"cancelled_quantity": 0,
"market_protection": 0,
"meta": {},
"tag": null,
"guid": "XXXXXX"
}
'