Many non-Hindus tease Hindus, ‘If there is only one God, how come there are so many Deities in your Dharma ?’ These ignorant individuals do not realise that Hindu Dharma is an absolute Dharma among all religions. If we consider the example of western Medical science, we will realise that initially there were limited medicines on various ailments. As science made progress, the number of medicines increased a lot. In a similar manner there are many Deities in the absolute Hindu Dharma. However, in Hindu Dharma too, there is one Supreme God or Brahman.
– Sachchidananda Parabrahman (Dr) Athavale