Dear Ashh,
Following are some of the useful sites you asked for:

www.creativewriting.com/

www.dailywritingtips.com/creative-writing-101/

www.nceonline.com/about_crafts.htm

www.teachingideas.co.uk/english/creative.htm

www.writing.com/

http://jerz.setonhill.edu/writing/creative/shortstory/