Regular expressions with Indian characters

Question

I wonder is it possible to write a regular expression for indian characters? I want to validate if the given character is an Indian letter or number. I found this two questions:

Answer 1

Well this should do

[\u0900-\u097F]+// \uFFFF format supported by Java,.net

or

[\u{0900}-\u{097F}]+// \u{FFFF} format supported by perl,pcre

or

\p{Devanagari}//not widely supported