Need a Regular expression to remove a char for Unicode text

[శ్రీనివాస]

Hai friends,
Can any one tell me how can i remove a character from a unocode text.
కల్‌&హార is a Telugu word in Unicode. Here i want to
remove '&' but not replace with a zero width char. And one more thing,
if any whitespaces are there before and after '&' char, the text should
be kept as it is. Please tell me how can i workout this with regular
expressions.

Thanks and regards
Srinivasa Raju Datla