Dear Ganesan,
I've took a look at the the web link of your product and I was very impressed by the details found there. I still have few questions for you:
1. Do you plan in the future to make some updates to the software? If yes, will you provide these update for free to the present clients?
2. SCJP 6 Certification Training Lab software is running only on Windows and Mac. Is there a chance to make a port of your software also for linux?
Thanks in advance for your answers.