finding records 4th battalion worcestershire regiment

Hi My great Uncle George Davis (B:11 MAR 1886 in Smite Hill, Claines Worcester D: 24 March 1972 in Ironbridge, Salop, England) was in the 4th battalion worcestershire regiment .I have a copy of a 'cute' little 1913 Xmas photo album that I just found in my father's things. (there is a copy of some of it on this web page; I have the complete book).
He may then have been in the 3rd Worcs as I have a photo and that is written on the back with G Coy and the number 10521.
My question is: Where can I find the records for George? I looked on Ancestry but can not find his military records. I found him on the 1911 census overseas military in India.
Thanks for any help.
Janice
He may then have been in the 3rd Worcs as I have a photo and that is written on the back with G Coy and the number 10521.
My question is: Where can I find the records for George? I looked on Ancestry but can not find his military records. I found him on the 1911 census overseas military in India.
Thanks for any help.
Janice