For any queries regarding the NPTEL Hard-disk Website, availability of Video Copying or issues in accessing Nptel Video Contents and Hard-disk, please contact

NPTEL Administrator,

NPTEL OFFICE

3rd Floor, IC&SR Building

IIT Madras

Chennai - 600036

Tel : (044) 2257 5905 ; (044) 2257 5908

NPTEL@iitm.ac.in