Generally, an application filed with provisional specification is known as provisional application which is useful in establishing a priority date for your invention.
Moreover, filing of a provisional application is useful as it gives sufficient time to the applicant to assess and evaluate the market potential of his invention before filing complete specification.
However, it is not necessary to file an application with provisional specification and one can file application directly with complete specification.
The patent application is not examined automatically after its filing. The examination is done only after receipt of the request of examination either from the applicant or from third party.
Intellectual property rights are the rights given to persons over the creations of their minds. They usually give the creator an exclusive right over the use of his/her creation for a certain period of time.