Question about visiting India: How to move around the country and cost

Hello everyone. I have a very extensive trip to India. Here is the list of things I would like to see.

-Chennai

-Pondicherry

-Madurai

-Thiruvananthapuram

-Kochi

-Udupi

-Mysore

-Bijapur

-Hampi

-Tirupati

-Puri

-Udaipur

-Leh

-Manali

-Dharamshala

-Shimla

-Rishikesh

-Varanasi

-Vrindavan

-Ayodhya

-Kolkata

-Namchi

-Gangtok

-Guwahati

-Tawang

-Imphal

-Aizawl

I know that this is very extensive, so I am just asking for advice. How much would this cost? Any places not worth it? I really am open for literally any advice or recommendations.