Mathrani arrived in New Delhi late Saturday night from Vienna.
Advani criticised the prime minister for not making any statement on the issue despite holding the external affairs ministry portfolio.
The PM asserted that no one who was guilty will go unpunished.
The government has taken this decision after a perceived threat to them.
Natwar Singh said he was contemplating legal action.
The footprints of Indian-origin corporate executives at multinationals is expanding, with Sandeep Kataria taking over the reins of footwear major Bata as its global chief executive officer. From FMCG majors to IT titans, Kataria joins the league of Indian-origin executives who have climbed the highest echelons of corporate across diverse sectors globally. From Nooyi to Pichai to Nadella, the list of such people at the helm of multi-billion dollar enterprises is long.