The judiciary plays a critical role in ensuring constitutional governance in India. Here are some ways in which it does so:

• The judiciary acts as a check and balance on the executive and legislative branches, ensuring that they do not overstep their constitutional powers.
• It interprets the Constitution and its provisions, ensuring that laws and policies are in line with the principles enshrined in it.
• The judiciary has the power to strike down laws and policies that it deems unconstitutional, protecting citizens' fundamental rights and freedoms.
• The judiciary is also responsible for ensuring that the rule of law is upheld, meaning that the law applies equally to all citizens, regardless of their social status or political power.
• The judiciary has an important role in safeguarding free and fair elections, ensuring that they are conducted in accordance with the Constitution and the law.
• The judiciary also acts as a guardian of the Constitution, ensuring that it is not undermined or eroded by unconstitutional actions or laws.

Overall, the judiciary is a crucial pillar of constitutional governance in India, ensuring that the government operates within the parameters of the Constitution and protects citizens' rights and freedoms.