I think the problem is only in India. My wife and I got our PCCs from the Indian High Commission in London through VFS. We had to take our passports, photographs, copy of proof of UK address and UK visa. My wife and I went on different dates to VFS as well. We did not submit marriage certificate and we were not even asked for it.
My wife hasnt taken my surname after marriage. We have each others names on the passports as we are more likely to carry our passport with us rather than our marriage certificates in case we are asked to prove our marriage.