I would say stand by the vehicle and ask him from what point he is infering the result.
I have given my Verna at ASS
(I would rate 5/5),as one of the SA there is truly auto enthusiast and has 8 years of experience there with Hyundai cars.
But in case of my swift , my present ASS
is not great as they are doing Jobs not at all needed,and staffs do it as money business, they don't tell what is for what ,though am pursuing engineering,from my automobile engineering professors as well as friends i get more info on the part replaced in my rides.
I am also planning to change my ASS
Was the tyres replaced before,63 k is a good life.
Its perfectly normal that your car lasted 90k km in our road conditions.
What i would say is before service itself check with the Struts for leaks at 5k km.
And ask the SA to tighten the suspensions also after check( The fluid will also be topped up).
At our road scenarios 20k km itself is a good km to replace the shocks.
This will ensure that load on suspension is reduced.
Also make sure whatever components are replaced ,its returned to you also.