Although there are wide variations in weather patterns across India, the
monsoon brings some unifying influences on India. The Indian landscape, its
flora and fauna, etc. are highly influenced by the monsoon. The entire agricultural
calendar in India is governed by the monsoon. Most of the festivals in India are
related to agricultural cycle. These festivals may be known by different names in
different parts of the country, but their celebration is decided by the monsoon. It
is also said that the river valleys which carry the rainwater also unite as a single
river valley unit. Due to these reasons, monsoon is often a great unifying factor
in India.