I did a little bit of research into the Harappan culture. The fan-shaped headdress in the center was usually worn by females, whereas males were rarely depicted with headdresses, although some horned headdresses were found.Stick to Buddhism . . . In recorded history, the very first God to appear in Hinduism is none other than Lord Shiva but as Pashupati, the primitive form of Lord Shiva and is found in the Indus Valley Civilization around 3500 BC depicted in this carving; Clearly a Horned God
Shiva is regarded as limitless, transcendent, unchanging and formless . . . why is that?
https://www.harappa.com/category/slide-subject/headdress
This is an interesting tablet.
https://www.harappa.com/indus/89.html
Plano convex molded tablet showing an individual spearing a water buffalo with one foot pressing the head down and one arm holding the tip of a horn. A gharial is depicted above the sacrifice scene and a figure seated in yogic position, wearing a horned headdress, looks on. The horned headdress has a branch with three prongs or leaves emerging from the center.
On the reverse (90),a female deity is battling two tigers and standing above an elephant. A single Indus script depicting a spoked wheel is above the head of the deity.
Material: terra cotta
Dimensions: 3.91 length, 1.5 to 1.62 cm width
Harappa, Lot 4651-01