Your route .
Milan — 2 nights stay
Arrive in Milan airport. Get transferred to your hotel..
Morning Free Walking tour in Milan.
Train ride to Venice
Venice — 2 nights stay
Checkout of your hotel. Take your train from Milan to Venice. Check-in to your new hotel.
Saint Mark's Basilica.
Take your flight back to India. Hope you end up with a lot of memories and a few souvenirs too..