Sunil, it sounds like you are looking for part number 3722-002919, which is the micro USB port for your phone. You can get it from places [http://stellatech.com/samsung-b7300-i8910-m8910-s8500-ear-phone-jack-headset-conn,a,en,301008.html|like this] as well as many others. It is soldered to the logic board, so it will require some great skills and good tools. you will have to disassemble your phone and remove the logic board to get to the port. Hope this helps, good luck.