Explanation:

Special Leave Petitions in India (SLP) holds a prime place in the Judiciary of India, and has been provided as a "residual power" in the hands of Supreme Court of India to be exercised only in cases when any substantial question of law is involved, or gross injustice has been done. It provides the aggrieved party a special permission to be heard in Apex court in appeal against any judgment or order of any Court/tribunal in the territory of India (except military tribunal and court martial)

The Constitution of India under Article 136 vests the Supreme Court of India, the apex court of the country, with a special power to grant special leave, to appeal against any judgment or order or decree in any matter or cause, passed or made by any Court/tribunal in the territory of India. It is to be used in case any substantial constitutional question of law is involved, or gross injustice has been done.

It is discretionary power vested in the Supreme Court of India and the court may in its discretion refuse to grant leave to appeal. The aggrieved party cannot claim special leave to appeal under Article 136 as a right, but it is privilege vested in the Supreme Court of India to grant leave to appeal or not.