Tipu Sultan rebelled against the British and martyred in the battle at ____.
Fill in the blanks:
(a) The British conquest of Bengal began with the Battle of ___________.
(b) Haidar Ali and Tipu Sultan were the rulers of ___________.
(c) Dalhousie implemented the Doctrine of ____________.
(d) Maratha kingdoms were located mainly in the __________ part of India.