Chennai, July 14 (IANS) Tamil Nadu Chief Minister K Palaniswami has tested negative for coronavirus infection.In a statement issued here the government said Palaniswami, all staff members and workers at his camp office have tested negative for coronavirus.The test samples were taken on July 13.A total of 15,85,782 persons have been tested in Tamil Nadu for coronavirus out of which 142,798 persons have tested positive till Monday including ministers and legislators.Three ministers -- P. Thangamani, K.P. Anbalagan and Sellur K. Raju -- have tested positive for coronavirus infection and are undergoing treatment at hospitals.Palaniswami will be chairing a cabinet meeting on Tuesday evening where issues relating to the spread of the virus and other matters are expected to be discussed. --IANS vj/skp/bg