Hyderabad, June 2 -- All vehicle owners in Telangana must update their mobile numbers and e-mail addresses on the Vahan portal within one month, as the government has authorised SMS, WhatsApp and e-mail as electronic means of communication to issue challans.

As per the notification issued on Monday, June 1, after the expiry of the one-month period, challans sent through SMS on the mobile number or e-mail will be recorded in the portal and deemed to have been served on the vehicle owner, even if the vehicle owner claims they never saw the message.

According to officials, many traffic challans remain unpaid because notices are often sent to outdated contact details. In some cases, disputes have also arisen over whether the notices were pr...