NewsX: Vinod Rai has retired as the CAG. After a 5-year tenure, Rai is leaving behind the most powerful stamp that any individual has had on the office,unearthing many irregularities and almost bringing the UPA government on to its knees. Now there's a debate over who should occupy the post.

We are now join by Our correspondent Kumar Shakti Shekhar for more. Why is the opposition raising objections over his appointment?