He was a sensation when he made his debut for England against the West Indies at Lord's last year.
It was a long overdue selection, but Mascarenhas made it count and he stayed in the England squad for another 12 months.
His last international was against New Zealand in Manchester this year.
Mascarenhas (31) has been contracted to Otago for two months for the State Shield and twenty/20 competitions.
He had his first outing with the Otago squad in a trial match at the University Oval yesterday.
"I want to help the boys win a couple of trophies," he said yesterday.
"It's a new experience and will help me improve my cricket and get back in the England side.
"I want to play some good cricket and win a few games for the Otago Volts."
Mascarenhas was in the England one-day team which played in New Zealand in February but he has never played in Dunedin before.
His last one-dayer for England was against New Zealand in Birmingham in June.
"I want to get back into the England team. All I have to do is to come over here, show good form and there is every chance I could get back in for the next series."
Mascarenhas made his first-class debut in 1996 but it took him another 11 years to make his international debut.
He was the first England player to join the Indian Premier League and he is prepared to return next year.
"It was a great experience for me and I'm looking forward to going back next year," he said.
"It is an unbelievable place to play cricket. The crowds are fanatical about the game.
"I was playing with and against the best players in the world. In my team I had Shane Warne, Graeme Smith and Shane Watson.
"We played against players of the calibre of [Adam] Gilchrist, [Herschelle] Gibbs and [Sachin] Tendulkar. It was an amazing experience."
He expects IPL to get stronger.
"I can only see it getting bigger and bigger," he said.
"Twenty/20 is the way forward for the game. I'm sure the New Zealand boys will be looking forward to going back as well.
"He said it had become clear the public enjoyed the abbreviated form of cricket more than tests.
"It is the shortened version of the game and you don't spend all day there. The crowds love it."
Mascarenhas has played first-class cricket but is better known as a one-day specialist for England and Hampshire.
"I suppose you could call me a specialist because I'm fairly suited to it. I'm enjoying myself at the moment and just want to improve my game."
He plays close attention to his health and fitness and expects to play top cricket for at least another six years.
He plays his first game for Otago against Canterbury in Christchurch in the opening round of the State Shield competition on Sunday.
