With just a week left for the commencement of Kanwar Yatra, the Haridwar administration has said it is fully prepared for traffic and security challenges that the 13-day religious event may throw up. As part of the annual yatra, kanwariyas (devotees of Lord Shiva) from different parts of the country collect water from the Ganga river at Haridwar in Uttarakhand to offer at Shiva temples back home.