Himalayan region in the north, the Gangetic Plain, and the Plateau region in the south and central part.
Explanation:
Proportional representation (PR) characterizes electoral systems in which divisions in an electorate are reflected proportionately in the elected body. ... The essence of such systems is that all votes contribute to the result—not just a plurality, or a bare majority.
Voter cannot cross party lines after having declared a party at the primary
