Hello.
Your wife does seem to have signs of OCD, but additionally there are some signs which suggest she might have more than OCD.
You have to check with her and find out how much insight she has into her illness. The more insight she ,that is, the more easily she accepts that she is suffering from a mental health problem, the better are the chances of a favorable response to treatment.
You will have to get her evaluated by a Psychiatrist for the OCD and possible Psychosis. OCD and psychosis go hand in hand when the OCD is severe and there since a long time.
And depression is the comonest co-occurring mental illness with OCD. When depressed, a person may not be able to take care of themselves all the time. This may also explain why she is not well dressed and her hair unkempt.
Regards
Sorry for making 3 comments...some things i find abnormal:
my wife takes a long while to fold a saree (strip of unstitched cloth, 9 meters length...
she keeps shaking the cloth for minutes ...and gets up early in morning to do it her way (my mom asks her to do things fast)
she asks me to wash hands if its very slightly dirty (even at late night).
she asks me to return into bedroom as soon as i return to home.
she did not allowed me to touch curtains for days..
she does not allow me to touch the keys of her wardrobe.
she does not touch my private parts by her hands.
she spilled tray while serving drinking water...and is more error prone while doing anything.
her dress and hairs are unkempt.
she has dry skin /generalised pruritus ....she has skin picking/scrathing marks all over her body ...her skin gets ruptured so many times.
terrace means terrace of the apartment where we live. she went there for the first time.