Find out the error part of the following sentences :The educational institutions (1)/of Patna are more (2)/expensive than (3)/that of Darbhanga (4)/No error (5)

Answer

4

Explanation

That of की जगह those of का प्रयोग होगा, क्योंकि Patna के educational institutions for Darbhanga educational institutions से हुआ है, जो Plural Noun है। अतः, Darbhanga के पहले those of का प्रयोग होगा।