LUCKNOW, Nov. 7 -- A Rs.2,800-crore shopping frenzy swept through the state capital's markets on Friday as Dhanteras kicked off the five-day Diwali festivities, pushing overall festive trade up by 15% to 20% over last year. From packed heritage sarrafa lanes in Chowk to bustling automobile showrooms across the city, shoppers turned out in large numbers to bring home bullion, SUVs, utensils and festive essentials. "Sales this year increased by 15 to 20% compared to last year's Dhanteras. According to traders, two-wheelers worth about Rs 80 crore and four-wheelers worth Rs 400 crore were sold. Clothing, electronics, cell phones, laptops, electric lights, dry fruits, sweets and bakery, puja material, furniture and gift items also had a brisk business," said UP Adarsh Vyapar Mandal state president Sanjay Gupta. P3...