Complex sentence: Observing the Mughal preoccupation with the War elephants Maharana Pratap charged and suffered even heavier casualties when Raja Man Singh also led to a massive charge that inflicted severe injuries upon Maharana Pratap himself who fainted and escaped from the battlefield along with his heavily wounded horse.
Split into simpler sentences: Observing the Mughal preoccupation with the War elephants Maharana Pratap charged and suffered even heavier casualties. A ferocious charge led by Raja Man Singh led to severe injuries upon Maharana Pratap who fainted and escaped from the battlefield along with his heavily wounded horse.