a. To declare that law to be void if it appears to be inconsistent with the constitution.
b. To issue necessary and appropriate orders and provide appropriate remedies for the enforcement of fundamental rights.
c. To issue appropriate orders and rights like right to habeas corpus, right to mandamus, certiorari, prohibition etc
d. To hear original cases, appeals, to examine decision referred for confirmation, review cases, hear petitions or review it's judgement.
e.To work for the protection of human rights etc.