Correct option (d) 601
Explanation:
In the word 'SACHIN', order of alphabets is A, C, H, I, N and S. Number of words start with A = 5!, so with C, H, l, N.
Now words start with S and after that ACHIN are in ascending order of position, so 5.5! = 600 words are in dictionary before words with S start and position of this word is 601.