Hi Sari,
This is AJ, thanks for your reply, for what I am gonna suggest it requires a lot of homework.
Taking into account that you have employee seperation for Overseas and Indian clients.
Now for Overseas clients there is no point in having saturday as a working day and hence you can leave those guys as it is.
And for Indian clients you can either provide the option to employees working on saturday their choice of day off during the week or additional leaves for the year.
The other option is classifying the employees into two sections and each month rotating them for a mon-fri day off and a sat day off.
I completely agree with you to put a check on attrition rate its better to do a 5 days a week, its better for the morale of the employees too. Also be aware that its a irreversible change and hence you might have to go through a lot of thought before you actually do it.
But it definitely is a very welcome move towards employee satisfaction, Also to control the attrition rate have a anonymous employee survey conduted online and that might help too.
Thanks & Regards,
AJ