The power of implementing Fundamental Rights in India primarily lies with the Judiciary and the Executive:
Judiciary (Supreme Court & High Courts)
The Supreme Court (under Article 32) and High Courts (under Article 226) have the power to enforce Fundamental Rights.
They can issue writs (Habeas Corpus, Mandamus, Prohibition, Certiorari, and Quo Warranto) to protect citizens' rights.
The Supreme Court is considered the guardian of the Constitution and has the final authority in protecting Fundamental Rights.
Executive (Government & Law Enforcement Agencies)
The Union and State Governments are responsible for ensuring that laws and policies do not violate Fundamental Rights.
The Police, administrative authorities, and other government agencies must act in accordance with these rights and prevent their violation.
In short, while the Judiciary ensures the enforcement and protection of Fundamental Rights, the Executive must implement them through laws and policies.