files, using pdfTeX, also free software.

"So powerful is TeX that it was able to process nearly 1,200 pages in just four minutes", says Radhakrishnan. "Not only that, since it is also a programming language, it is able to do several things automatically, like the generation of header markers, for example", he adds.

To incorporate corrections and editorial changes to the proof sheets, RVT designed a graphical spreadsheet interface for SJP. This also helped to save time in updating the almost 10,000 entries that had changed since the last directory was printed four years ago.

Recent reports in India's enterprise-based Network Magazine also noted the small but growing number of other industrial ventures starting to try out GNU/Linux in their "mission critical space".

Asian Paints, India's largest paint company, has implemented SAP modules on GNU/Linux. IDBI Bank, with over 91 branches, runs its core banking applications on it. Rolta India runs its database containing thousands of users, while ICICI Infotech runs its knowledge management applications, and C-DAC runs e-governance solutions on GNU/Linux.