The Centre's nod to a Joint Parliamentary Committee (JPC) probe into the 2G spectrum scam notwithstanding, the Bharatiya Janata Party (BJP) has stepped up the pressure just ahead of the Budget session. Speaking to NDTV, Arun Jaitley, Leader of Opposition in the Rajya Sabha, said the Prime Minister had a lot to answer for and that a mere statement on A Raja will not do.