Most sparkling wine comes from France, especially in the region of Champagne (hence the name of the drink; technically only sparkling wine from this region is considered "Champagne," the rest are just varieties of sparkling white wines). However, Portugal's Twin Vines also make an awesome sparkling white wine called Vinho Verde. Check it out at http://www.jmftwinvines.com/about-twin-vines-wine.html
France
Although the USA is number four on the overall list is the top new world wine producing country. Australia produces the most per capita.
France
Sparkling wine is "wine with bubbles" - carbon dioxide creates the bubbles in your mouth and tingling on your tongue. They can be dry, sweet, full bodied or light. Champagne is the most popular "sparkling wine.
Only sparkling wines made in the region of Champagne, France are allowed to be called Champagne. Sparkling wine made elsewhere (India included) have to call themselves sparkling wine. So to answer your question, the difference between Indian sparkling wine and Champagne is where the sparkling wine was made.
Sparkling Italian wine is called Prosecco.
No, despite the urban legend, sparkling wine and still wine will affect you equally.
How many glasses to a bottle of sparkling wine?
Canada's Ice Wine
Champagne is a sparkling wine
For Sparkling wine it is sealed in its container to allow the natural gases to make the wine sparkling. Still wine allows the gases to escape and a wine that still has gases is credited with not being ready to drink yet.
The Champagne region in Northeast France is regarded as the best producers of champagne, and even is named after the drink. In many countries, the term 'champagne' is legally reserved only for the type of sne produced in that specific area of France.