What would be the cost of a round trip to India from the Mid West USA?

Well,

Around US$ 1200/- person depending on when you travel and how early you book. See Jet Airways and Air India.

cincy/nashville to india and back is $3000 by qatar/etihad depending on dates and availability of tickets , to delhi it may be marginally less ., sight seeing in delhi/ from delhi you can proceed to golden temple in punjab state and come back to delhi from where you may visit tajmahal which is not far away ., your stay, fooding and local travel would be around $200 to $250 per day ., and travel by train to punjab/ agra would cost you another $200

so you may plan for around $6000 to $7000 for a trip of seven days

BTW which nashville you are referring to ? is it if NC or TN (since you mentioned cincy , i pressumed it as that of NC)

Around 100000 rupees 1 $ is 62 rupees.

It depends on when you want to go and how long you are going to stay. Go to www.tripadvisor.com and put in the cities and dates. There are no emails or anything involved.

so you are asking us to be your personal travel agent without compensation. it does not work that way. go to a travel agent then since you are too lazy to look yourself.

A lot.