How do you change kurinji plan sim to nesam plan in bsnl?

To change your Kurinji plan SIM to the Nesam plan in BSNL, you need to visit the nearest BSNL customer service center or authorized retailer. Bring your valid ID proof and the SIM card you want to change. Request the change to the Nesam plan, and the representative will guide you through the process, including any applicable fees. Alternatively, you can also check for options on the BSNL website or mobile app.