New Delhi, Feb 3 (IANS): Hollywood superstar Arnold Schwarzenegger failed to turn up at an event to present Abhishek Bachchan an award for helping create a greener environment, but has congratulated him for the honour.

"Congrats on the Green Globe, @juniorbachchan. More celebrities should be pumping up green progress. I'll be back, and we should get together," Schwarzenegger wrote on his Twitter page Friday morning.

The 64-year-old, former governor of California, was here to attend the 12th Delhi Sustainable Development Summit. He was also due to be present at the Green Globe Foundation Awards Ceremony to present Abhishek with the Green Globe for Outstanding Efforts by a Celebrity award, but he did not turn up.

However, Abhishek says he was not aware that Schwarzenegger was suppose to present him the award.

"I had no idea, I was just told that I would get the Green Globe award. I was never told that I would get the award from him," Abhishek told IANS.

According to a source, "Wizcraft people had met Arnold and everything was sorted, but don't know why he didn't turn up at the last moment."

Abhishek said he is willing to work with Schwarzenegger for a greener future.

"If he (Schwarzenegger) thinks me worthy of helping him out for a greener tomorrow I would be more than happy to do it," Abhishek said.