The water crisis in Selangor, Putrajaya and Kuala Lumpur has not led to any increase in incidence of diseases, according to Health Minister Datuk Seri Dr S. Subramaniam.

He nevertheless advised residents to boil water used for cooking and drinking as a precaution.

"The water was channeled through various sources in the process of distribution. I believe the water has been treated, but it is safer to boil, to kill the germs.

"This is also to prevent any spread of diseases through the water," he told reporters after a UPSR excellence award presentation for Tamil Primary School (SJKT) pupils in the country, organised by Maju Institute of Education Development (MIED) here on Saturday.

In this regard, Subramaniam who is also MIC deputy president hoped the Selangor government would make an appropriate decision on the water situation to avoid burdening the people further.

The water rationing plan in Selangor carried out since February 27 is now in the fourth phase and will go on until the end of April.

Menteri Besar Tan Sri Abdul Khalid Ibrahim was reported to have said he would announce soon, on whether the rationing exercise would be extended.

Meanwhile, 1,306 SJKT pupils received excellence certificates and cash incentives presented by Malaysia's Special Envoy (Infrastructure) to India and South Asia, Datuk Seri S. Samy Vellu, who is also MIED chairman, for achieving 7A in the UPSR 2013.

Two hundred and seventy-two SJKT teachers were also present at the ceremony.