Identify the incorrect spelling.
In the following questions, sentence are given with the blanks to be filled in with an appropriate word(s). Four alternatives are suggested for each question. Choose the correct alternative.
Although the forces of Ibrahim Lodhi ……. most valiantly, they were defeated by Babar’s forces in the First Battle of Panipat which laid the foundation of the Mughal Rule in India.
He is the great authority …… Indian history and nobody can challenge him in respect of what he has said.