Special Leave Pettition

Special leave petition means that you take special permission to be heard in appeal against any High Court/tribunal verdict. 

Usually any issue decided by the State High Court is considered as final, but if there exist any constitutional issue or legal issue which can only be clarified by the Supreme Court of India then, this leave is granted by the Supreme Court & this is heard as a Civil or Criminal appeal as the case may be. 

Going to the Supreme Court in appeal should not be considered a matter of right by any one but it is matter of privilege which only the Supreme Court will grant to any individual if there exist an important constitutional or legal issue involved in any case that was not properly interpreted by the concerned High Court against whose judgment you approach the Highest court of the country not otherwise..