Non-response for copyright requests

You cant use copyrighted material of other company without their permission. Even though you have given notice doesnt give authority to use the material without permission.

The Copy Right Act inter-alia provides certain exemptions, without need to first obtain permission from the copyright holder.

For the purpose of Research, education and study

For learning and teaching in a class room

Under the Teach Act 2002, Sec 110(1 & 2), the Copy Right Law provides educators with a separate set of rights in addition to fair use, to display and perform others work in the classroom.

Copying for examination and for instruction

Fair use (making copies) not for profit

However, the original author must always be acknowledged by giving reference.

If its a Published public document not classified as privileged, the same may reproduced by giving proper reference.