Can retired SC Judges holding constitutional posts take up private work?

Delhi High Court is to decide whether retired Judges holding constitutional posts on various Commissions can take up private work like Arbitration, opine on matters etc.

In the PIL, Prashant Bhushan appearing for Common Cause, argued yesterday before the Division Bench comprising Chief Justice A.P. Shah and Justice R.S. Endlaw that,"Giving opinions in writing on a point in issue to be produced in a court of law is a violation of Article 124(7) of the Constitution which prohibits a retired judge of the Supreme Court from acting or pleading before any court or tribunal,”