Hey there,

• The Actual marks and normalized marks are different from each other. Raw score or actual marks are the marks which are allotted for each section according to each correct/ incorrect answer.
• Whereas Normalized marks/ scaled marks are the marks which are calculated using the actual score. 

Following formula is used for TANCET

        =40 + (10/S) (R - M)

where M= Mean marks or total marks obtained from the Part I, Part II and Part III divided by 3. 

S= Standard deviation of raw marks

R= Raw marks or total marks obtained from Part I, Part II and Part III.

So hope this helped!!