There are trends developing in world cricket that are of concern to the future of cricket, Indian coach Gary Kirsten said.

Kirsten also said that the Indian team has to decide its priorities in terms of Test cricket and other forms of the game, like T20.

"It's quite interesting that we've got a Twenty20 World Cup in April next year in the West Indies and Team India don't play one T20 game until that tournament starts.

"What should be happening is that we should be going on tour and playing six T20 games and one or two 50 over games. I think that's going to happen - it's just a matter of time.

India team plays six Tests this year

Kirsten said he believed that 50-over games were "here to stay".

On Test cricket, Kirsten said: "The worrying side that I'm seeing is that a guy like Andrew Flinthoff as a high profile cricketer has now made the decision to leave Test cricket because he feels that he can get more longevity out of his body and earn a much more money by moving away from Test cricket and playing one day cricket and twenty20 cricket.

"He's perfectly right in his decision. Why not?

"The one area that is concerning me about where Test cricket is going is that it's a natural progression that the guys are then going to say 'I'm not interested in bowling 25 overs in a day when I can bowl four overs and earn three times as much.'"

Kirsten said the "bottom line" was that every country needed to look at Test cricket and say how important it was to them.

"Team India plays six Tests this year. Is that sufficient or are there other priorities? I don't know."

"We do need to look at the economics, but if we are going to keep Test cricket going like we wanted to, we need to sort out the priorities of Test cricket and (whether it) stands above anything else (like) T20 cricket."