I have created a monthly subscription in Google play console, When I have purchased it in my app from real card.
Below are the details on google play store/subscription
It says it will be canceled after a month but I want to auto-renew it, I also want cancel option in google play store/subscription
Where can I find auto-renew option in the subscription?

From your profile I'm deducing you are testing your app in India.
A few months ago, Google has announced that it would pause new signups of auto-renewing subscriptions for users in India:
source: https://www.xda-developers.com/google-play-suspend-free-trials-auto-renewing-subscriptions/
Maybe you should try to test on another market?