Kellie Sloane has used her first public trip as her state's opposition leader to tour multicultural suburbs as she seeks to win over voters who have deserted her Liberal colleagues.

The 52-year-old first-term MP from Sydney's well-off eastern suburbs took over the leadership of the NSW party on Friday after Mark Speakman stepped down.

She became only the third woman to lead the party's NSW branch.

Ms Sloane toured Little India in western Sydney's Harris Park on Saturday as part of her inaugural public outing since taking the job.

She met with business owners before pledging to continue to build up the Parramatta region, in Sydney's diverse middle and outer-ring suburbs, if the Liberals were successful at the 2027 state election.

"We know that Parramatta is the second CBD in Sydney ...

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