Saina had earlier expressed doubts over India's capability to hold big sporting events.
Bihar Chief Minister Nitish Kumar says the state government is ready for talks with the Maoists.
Kerala lecturer TJ Joseph's palm was chopped off by suspected PFI activists for alleged derogatory references to Prophet Mohammed.
A Maoists spokesman said an audio CD containing the voices of the three policemen would be provided to media.
Interior Minister says Indian witnesses cannot testify via video-conferencing as it is not allowed under Pakistani laws.