Generate a Paytm Payment Link

Server calls /paytm/create-link → Paytm returns a short URL you can share via SMS / WhatsApp / email. The customer pays on a Paytm-hosted page. Reconcile via /paytm/link-transactions (which calls Paytm's /link/fetchTransaction) - not /v3/order/status.

Amount (INR) Customer name Customer mobile (10 digits) Customer email Description (alphanumerics + spaces, ≥ 3 chars)