A . railway have to be set up for making transport easier and thus so many trees were cut down for making sleepers .
b . a population was increased , needs also increased , so forest was cut down to clear the ground for agriculture .
c . In England , their was a great demand of coffee and tea . as India was a colony , British clear that forest to cultivate coffee and tea.
d . Their were also a great need for fodder to make products in factories.