Ans. If qualitative studies are done or one year, devoting 6 hours a day for 6 days a week consistently is sufficient .
Ans. Yes you can (degree from any recognized university, any stream makes you eligible).
Ans. It is always better to start the preparation for mains along with P.T. as we know that the syllabus for mains is much wider than preliminary exam and the time between P.T. and mains is just four months which is not sufficient for preparation.
Your attempt is not counted by mere filling the form. Unless you appear for your first paper of P.T. your attempt is not counted.
Ans. Your attempt is lost. The result of not appearing in mains or not have cleared mains is same. That is, again apply for P.T. next year.
Ans. NO, under UPSC, he is not eligible for relaxation but under state’s commission exam he will be eligible for relaxation.
Ans. Firstly, it is not mandatory that your optional subject should be from your stream. It may or may not be the subject of your background. If you are too good at your own subject and can easily solve the paper on the same subject asked by UPSC then you should definitely have it as optional subject. But if you are not able to solve then you should switch on to some other subject.
Ans. Any answer in simple language with all relevant points in it is good enough to score well.
Ans. No one can count exact number of words for each answer in the examination hall. Only an estimate of words can be taken.
Ans. This is not true at all. An examiner does not give marks upon the language used to answer the question. Marks are given on the basis of the quality of the answer.