Lowest Score by India in an innings in T20 Internationals is
73
74
75
64
To solve this question, the user needs to have knowledge about the lowest score made by India in an innings in T20 Internationals.
Option A: 73 is not the correct answer because India has scored lower than this in an innings in T20 Internationals.
Option B: 74 is the correct answer. India made this score against Australia in 2008 at Melbourne Cricket Ground (MCG).
Option C: 75 is not the correct answer. India has scored lower than this in an innings in T20 Internationals.
Option D: 64 is not the correct answer. India has scored lower than this in an innings in T20 Internationals.
Therefore, the answer is: B. 74.