In recent time ie last few hundred years, many distortion n misinterpretation has been done too and readers who don't know Sanskrit tend to believe it.
Let's dive in brief
Indra: Rain God & Termed as Devraj
Agni: Fire God
Vishwakarma: Architect God
Varun: Ocean and Water God
Kamdev: God of Compassion and love
River Saraswati, Ganga, Yamuna, Narmanda, and Samudra Dev are worshipped because our Civilization was established around them. @davidfrawleyved