Retail prices of tomato on Saturday skyrocketed to Rs 80-85 per kg in the national capital due to tight supply from growing areas, according to private traders.Tomato prices have been firm since June and were ruling in the range of Rs 50-60 per kg depending on the variety till last few weeks. The rates have suddenly shot up this week on reports of lower arrival of the new crop from key growing states, traders said. On Saturday, tomato was quoted at Rs 80-85 per kg by vegetable hawkers and vendors in unorganised markets depending on the quality and residential colonies. But the government data showed the average retail price of tomato at Rs 60/kg in Delhi.