India's Govindan Lakshmanan bettered his personal best mark in the men's 5000 metre race at the World Athletics Championships in London last night, but it was not enough to qualify for the final round in the event. The 27-year-old clocked 13 minute 35.69 seconds, nearly one second better than his earlier personal best time of 13 minute, 36.62 seconds. Lakshmanan was figuring in the first round heat number one, which earned him a 15th spot in a top class field, featuring defending champion Mo Farah from Great Britain.