Ramkumar, ranked 526, ousted Gombos, who is ranked 197, 7-6(3), 3-6, 6-3 after two hours and six minutes battle.
However, he has been pitted against India's best singles player Somdev Devvarman in his first round match.
In a brief chat with newspersons after making the main draw, Ramkumar said, "It was a tough match from the beginning against the Norbert. But I was in control. It was just a couple of points that mattered."
He said he would also be playing in the ITF Futures tournaments to be held in Chennai and a few other Indian cities, in February 2013.
Talking about his first round match, the Indian said, "I will stick to my strengths and try to win each point and I am not worried about my rival".
