Lucknow, Aug 24 - A nine-year-old HIV positive student was turned out of a government-run primary school in Uttar Pradesh's Allahabad district as the principal mistakenly feared he would spread the virus among other children, officials said Monday.

A complaint was Monday filed against the principal of Belmonda Primary School in Allahabad for 'humiliating' the the Class 4 student, a resident of Jasra locality, an official said.

'We learnt that the nine-year-old was Saturday shooed away from the school by its principal for being HIV positive,' Brijesh Mishra, official in-charge of primary education in the district, told IANS over telephone from Allahabad, some 200 km from here.

'We still don't know how the school principal came to know that the boy was HIV positive.