CableCreation 15 Feet Toslink Male to Toslink Male Digital Optical SPDIF Audio Cable, Braided Fiber Cable with Metal Connectors can be found on Amazon for less than Rs. 500.
The quality of the cable is very good as it is braided. Thickness is also good.
Connectors are well protected in the package with plastic caps and slide into the ports of TV and speakers with ease.
During my testing I did not find any issues with the cable and it worked perfectly as advertised.