Internal vs theory marks-Anna University

The Minimum Theory Marks out of 100 is 45, which everyone should get mandatory to get a pass grade, irrespective of any internal mark. Many students study well for internal assessment tests and get 18 and above internal marks out of 20. Some students get atleast 14 marks for internal marks and some students even lower. Also many students want to get S or A grades and some satisfies with E or D grade. For these students, the below table gives the clear idea for the minimum internal marks and the theory examination marks to get required letter grades.

(THIS TABLE IS CREATED BASED ON 20 MARK FOR INTERNAL AND 80 MARK FOR EXTERNAL EXAM)

INTERNAL MARK V/S THEORY MARK TO GET LETTER GRADES

Internal Marks out of 20	Theory Marks to get ‘E’ grade	Theory Marks to get ‘D’ grade	Theory Marks to get ‘C’ grade	Theory Marks to get ‘B’ grade	Theory Marks to get ‘A’ grade	Theory Marks to get ‘S’ grade
20 Marks	45	47	52	64	77	89
19 Marks	45	48	53	65	78	90
18 Marks	45	49	54	67	79	92
17 Marks	45	50	55	68	80	93
16 Marks	45	52	57	69	82	94
15 Marks	45	53	58	70	83	95
14 Marks	45	54	59	72	84	97
13 Marks	47	55	60	73	85	98
12 Marks	48	57	62	74	87	99
11 Marks	49	58	63	75	88	100
10 Marks	50	59	64	77	89	N/A
09 Marks	52	60	65	78	90	N/A
08 Marks	53	62	67	79	92	N/A
07 Marks	54	63	68	80	93	N/A
06 Marks	55	64	69	82	94	N/A
05 Marks	57	65	70	83	95	N/A
04 Marks	58	67	72	84	97	N/A
03 Marks	59	68	73	85	98	N/A
02 Marks	60	69	74	87	99	N/A
01 Mark	62	70	75	88	100	N/A
00 Mark	63	72	77	89	N/A	N/A

Hope students would have a clear idea on how much internal marks and theory marks corresponding to each other to get a desired grade. Comments are welcomed.