Hey, @AbdulMolla
To comply with the Reserve Bank of India’s guidelines for processing recurring online payments, Shopify bill payments are processed through Razorpay, a secure payment partner. Adding or re-entering your card connects you to Razorpay, where you establish a mandate that permits Shopify to automatically charge your card each month. Whenever this mandate is used to charge your card, your bank sends a pre-debit notification to you through SMS, giving notice that Shopify will charge your card in 24-48 hours.
You can learn more about Shopify billing for India here.
If there is anything else I can help you with, please let me know.