NEW DELHI: In a bid to block access of students to pornographic websites , the Centre told the Supreme Court on Friday that it is exploring the option of installing jammers in school premises but ruled out the possibility of putting the machines in school buses as suggested earlier.Appearing before a bench of Justices Dipak Misra, A M Khanwilkar and M M Shantanagoudar, additional solicitor general Pinky Anand and advocate Rajesh Ranjan said the government had asked CBSE to examine the option of putting jammers in school premises.“It is not possible to install jammers in all school buses but we have asked CBSE to consider installing jammers in premises,” the ASG told the bench.The government had earlier told the court that jammers could be placed on buses but not in school premises. “It may not be feasible to install jammers inside school premises since jammers in school will block internet access to computers used by children. However, in order to prevent access of pornographic sites on cell phones by these drivers or anyone who is in charge of the children in the buses they can be installed in buses,” the government had said in its affidavit.Reaffirming the government’s commitment to take action against all websites hosting child abuse contents, the ASJ said more than 3500 sites were blocked last month itself and the Centre was building a comprehensive centralised mechanism to curb the menace of online child pornography. She said the Centre was taking the help of Interpol which provided it “Worst of List” of child pornography websites.“Interpol has taken the responsibility of maintaining a ‘Worst of List’ containing a list of domain names hosting child sexual abuse contents. CBI, which is the nodal point for all interaction with Interpol, has agreed to facilitate access to the list maintained by Interpol and those sites are blocked. Last blocking has been done in June and around 3522 websites has been blocked,” the government said.The court was hearing a PIL filed by one Kamlesh Vaswani seeking its direction for a blanket ban on child pornography websites. Advocate Vijay Panjwani, appearing for the petitioner, said law should also be framed to punish people for watching obscene videos at public places.Expressing concern over multiple child pornography websites “which are being deliberately run with perversity to make money”, the apex court had directed the government to sit with information technology experts to find out ways and means to block such websites. “It is not permissible under Indian law and you have to block it,” the court had said.In a status report filed in the SC on steps being taken on child pornography, the government said Cyber Crime Prevention against Women and Children (CCPWC) portal will set up by October-end and online complaints could be filed in such cases.