Backed by some sumptuous 10-foot putts, Singapore's Mardan Mamat is tied for top spot after the opening round of the US$1.25 million (S$1.55 million) Hero Indian Open in Delhi on Thursday.

The 46-year-old fired a six-under 66 to share the lead with five other players, including Thailand's Chapchai Nirat and Siddikur Rahman from Bangladesh.

Mardan, who is looking for his fourth Asian Tour title, said: "I'm pleased with how I struck the ball from tee to green. I was very patient and played it one shot at a time. That's the key to my good round. This course suits me a lot because I'm not a long hitter. I just keep it straight and make sure I hole some putts."

Mardan, who is marking his 19th year as a professional, won his maiden Tour title at the same event back in 2004.