"Obviously another 35 wickets is probably the target...my immediate goal. I just like to keep getting wickets and I am feeling good at the moment," the 33-year-old Kumble said after getting to the milestone against Australia on the opening day of the first cricket Test here.
"It is very satisfying and a great honour to be in the list of 400 wicket-takers. The list is amazing and to be a part of it is a great feeling," he said.
"It's an honour to be a part of a list which has only three spinners -- I am happy I am one of them.
Recalling his career-threatening shoulder injury, which kept him out of international cricket for almost one year in 2000, Kumble said: "It was a hurdle but I'm really happy that I got over that and got to this target. When I took 300, I started to believe it is possible."
Asked about his plans to celebrate the big achievement, the true professional said he will first wait for the match to end.
"Not yet. We just want to focus on this game. It is important that we get a good day's cricket tomorrow," he said.
"There's still chance and if we restrict Australia for another 70-80 runs we have a very good chance," said Kumble who went into the match with a mild flu.
"We were pretty okay at 160 for four. Then that partnership (between Simon Katich and Michael Clarke) came.
Towards the end we gave away some 20-30 runs more."