Legislative Council election candidates yesterday joined a protest march to call for bus fare discounts for students. The candidates - Leung Kwok-hung, Richard Tsoi Yiu-cheong and Lau Yuk-shing - joined about 30 other protesters on the march from Chater Garden to the Murray Building. Dressed in white to imitate school uniforms, they called on bus companies to follow the lead of the MTR Corporation and offer discounts to all full-time students, not just those aged 12 and under. Pointing out that students were not yet 'financially independent', the group, calling itself Campaign to Protect the Grassroots Livelihood, said bus fares were too high and discounts of 50 per cent should be offered. Wong Sau-ping, a housewife whose son is a secondary student, said his transport costs were more expensive than his food bills. Bus fares from his home in Ap Lei Chau to school in Mongkok cost at least $21 a day. 'Sometimes my son needs to travel to other places for project works and extra-curricular activities. If discounts were offered, it would relieve our economic burden,' she said. Group spokeswoman Ally Lam Lai-ling said the government should put pressure on railway and bus companies instead of granting more than $400 million in public money each year to subsidise students' transport costs.