GATE Score
After the evaluation of the answers, the raw marks obtained by a candidate will be converted to a normalized GATE Score. From 2013, the GATE score is computed by a new formula.
The GATE Score of a candidate is computed from:

where,
S = GATE Score (normalised) of a candidate,
M = Marks obtained by a candidate in a paper,
Mq = Qualifying marks for general category candidates in the paper,
M
t = Average Marks of top 0.1% or 10 (which ever is higher) of candidates in the paper,
S
t = GATE Score assigned to Mt (around 900), and
S
q = GATE Score assigned to Mq (around 300).
M
q is usually 25 marks (out of 100) or μ+σ, whichever is higher. Here μ is the mean of marks in a paper and σ is the standard deviation.
GATE score remains valid for up to two year from the date of issue.
Old formula:
Till GATE 2012 the score was calculated using the formula: GATE score =

Where
m = marks obtained by the candidate.
a = average of marks of all candidates who appeared in the paper mentioned on this scorecard in GATE for that year
S = standard deviation of marks of all candidates who appeared in the paper mentioned on this scorecard in GATE for that year
a
g= global average of marks of all candidates who appeared across all papers and years
s
g= global standard deviation of marks of all candidates who appeared across all papers and years