When the petition came up for hearing, Justices S Tamilvanan and V.S.Ravi ordered notice to the central and state governments seeking their replies within two weeks.
Petitioner C.Anantharaj, an advocate and PIL litigant, said it was necessary to have Bio-Safety Laboratory Level-4 in the state as hundreds of passengers arrive here from Africa and other countries where Ebola and H1N1 are prevalent.
Hence, he pleaded for setting up Bio-Safety Laboratory Level-4 in Chennai, Madurai, Tiruchirappalli and Coimbatore.