A patent registration helps you to get a patent of an intellectual property right to an invention carried out by an individual or firm. IP department has been initiated by Indian government to grant you the full right to register your invention under patent (but only if it is unique). In return the inventor must produce all the proofs related to the invention as asked by the government. It also ensures that owner gets more preference over other person for your particular invention. In India, Patent is being governed by the Patent Act 1970 & Patent Rules 1972.
Patent does not long for a lifetime. If you file a patent now then after a period of 20 years it falls under the public domain. The invention can be anything such as process, art, method to manufacture, particular apparatus, machine, computer software, technical application, chemicals or drugs.