Azure Kubernetes Kong Ingress Timeout Issue - azure

Question

I have one API application in Azure Kubernetes Service. Kong gateway is used for API. My problem is that one endpoint may take more than one minute to give response. But after one minute, it throws error message below
{
"message": "The upstream server is timing out"
}
I use GitHub Actions for deployment. Below is my yaml for Kong part
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: docuploadapi
namespace: ocr
annotations:
cert-manager.io/cluster-issuer: letsencrypt-prod-kong
kubernetes.io/ingress.class: kong
konghq.com/protocols: https
konghq.com/https-redirect-status-code: "301"
konghq.com/plugins: upstream-timeout-example
# konghq.com/strip-path: "true"
nginx.org/location-snippets: |
add_header X-Forwarded-Proto https;
spec:
rules:
- host: domain
http:
paths:
- path: /
pathType: ImplementationSpecific
backend:
service:
name: docuploadapi
port:
number: 80
- path: /api
pathType: ImplementationSpecific
backend:
service:
name: docuploadapi-kong
port:
number: 80
- path: /api/Admin
pathType: ImplementationSpecific
backend:
service:
name: docuploadapi-kong-admin
port:
number: 80
tls:
- hosts:
- domain
secretName: docupload.dev-secret
---
#network policies
kind: NetworkPolicy
apiVersion: networking.k8s.io/v1
metadata:
name: docupload-allowingress
namespace: ocr
spec:
podSelector:
matchLabels:
app: docuploadapi
ingress:
- ports:
- port: 80
from:
- podSelector: {}
# matchLabels:
# app.kubernetes.io/instance: nginx-ingress
- namespaceSelector: {}
# matchLabels:
# name: ingress
---
kind: KongPlugin
apiVersion: configuration.konghq.com/v1
metadata:
name: upstream-timeout-example
config:
connect_timeout: 4000
send_timeout: 5000
read_timeout: 5000
I read this document but when I send request it still gives same error message.
How can I increase this timeout to 2 minutes?