The total number of three-letter words that can be formed from the letter of the word SAHARANPUR is equal to

1S, 3A, 1H, 2R, 1N, 1P, 1U When all letters are different, corresponding ways is  7C3×3!=7P3=210. When two letters are of one kind and other is different, corresponding number of ways is  2C1×6C1×(3!/2!). When all letters are alike, corresponding number of ways is 1. Thus, total number of words that can be formed is 210 + 36 + 1 = 247.