Question

which gods and goddesses were worshipped by the people of the harappan civilisations

Answer 1

it was widely Suggested that the harappan people worshipped a mother goddess symbolizing fertility.
a few Indus valley seals displayed swastika sign which were there in many religion's especially in Indians regions such as hinduism，budeism and jainism

Answer 2

Answer:

Mother Goddess was worshipped by the people of the 'Harappan civilization.'

Explanation:

The Harappan people believed to have worshipped a Mother Goddess which symbolized for fertility. Various figurines of female suggest that the common people revered them as Mother Goddess. Excavation of a large number of 'semi-nude terracotta figurines' suggests these female figures were considered an origin of all creation and energy or Shakti.  

The goddess is seen wearing many ornaments along with a 'fan-shaped headdress'.  The smoke muddy figures suggest that burnt incense was offered before her by the common people. The veneration of sacred animals like bulls, and by the huge quantum of phallic-shaped objects lying at the Harappan sites reflects the common people's obsession with fertility.