Age relaxation for a scheduled caste & visually handicapped central government employee in Civil Services Examination? Can visually handicapped candidates avail scribes in examination?

I am Scheduled Cast & Visually handicapped candidate having 40 years age.
I am also a Central Govt Employee since July 2011
What is the relaxation in civil services examination for me?
At What time can I take examination in civil services examination?
Can I avail a scriber in the examination

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hi,
in civil services examination,
age relaxation is given to reserved category students.

there is no age relaxation for general category.
age limit for general category is 21-30 years.

3 and 5 years age relaxation is for obc and sc/st category.

for obc,
age limit is 21-33 years.

for sc/st
age limit is 21-35 years.

for phd candidate,
age limit is 21-40 years.

for more,
http://upsc.gov.in