"My colleagues are not allowing me to go to school. We were not a typical school. We used to celebrate each and every commemorative day … Each day was a celebration for us. Some of them (students) are gone in the disaster," Unnikrishnan told reporters. 

IMD updated its weather warning, placing the central district of Thrissur and northern districts of Malappuram and Kozhikode under red alert on Saturday.

On May 15, the weather office had announced the onset of monsoon over Kerala by May 31.

The onset of the monsoon over Kerala marks the beginning southwest monsoon season over India, which brings more than 70 per cent of the country’s annual rainfall.

Southwest Monsoon is expected to reach Kerala around May 31, marking the beginning of the four-month rainy season crucial for India's agricultural economy.