Who betrayed Siraj-ud-Daula in the Battle of Plassey in 1757 ?
Hyder Ali
Mir Qasim
Mir Jaffar
Nawab of Oudh
Correct Option: C
Mir Jafar rose to power after betraying Nawab Siraj-ud-Daulah of Bengal at the Battle of Plassey in 1757. His rule is widely considered the start of British rule in India.