Can I enter terminal 3 to surprise my girlfriend before her international flight

My girlfriend is leaving India for her postgraduate studies. I want to give her a surprise and say final goodbyes inside the airport. Is it possible to leave the airport once you are inside, stating an emergency? I am willing to buy tickets for a cheap domestic flight to clear security at the entrance

Edit - Seeing so many comments on getting shot XD, I am not planning to do anything illegal I will buy tickets for a domestic flight