Bangalore youngster Robin Uthappa, who appears to have sealed a berth in the World Cup squad after a brilliant innings in the third One-Day International against the West Indies, in Chennai on Saturday, has promised an even bigger knock in Wednesday's series decider in Vadodara.

The 21-year-old, who hammered a 41-ball 70 that was studded with 11 fours and two sixes, said neither did he plan such a belligerent innings nor does he have an eye on the World Cup at the moment.

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"I am not thinking about the World Cup. Getting selected is just the by-product of doing well," he said of his blazing performance, which, however, went in vain as India lost by three wickets.

"It was not a planned innings. I played each ball on merit. I am looking forward to a big innings in my next match," said the former India under-19 player who is expected to open the innings on Wednesday with Sourav Ganguly.

Uthappa was among the few Indian players who opted for practice on Monday at the IPCL ground, ahead of the fourth and final ODI, the others being captain Rahul Dravid, Irfan Pathan and Munaf Patel.

While Pathan is part of the squad, Patel has been called up to see how he is shaping up after his ankle injury.

Uthappa, who at Chennai played in only his fourth ODI since his debut eight months ago, said he did not go out to bat with a premeditated plan of attacking the Windies bowlers.