Eat Indian Food with Your Hands

In India, eating with your hands is a tradition. Though cutlery is used everywhere, a lot of Indians prefer to eat Indian food with their hands.

Steps

Indian food is complex, but for our purposes, we can divide it into rice & rice-based (dosai, idli, etc.) and breads (chappatis/ Naans/ Rotis) and curries.
Use only your right hand, whatever the hand you usually use, might be.
Only your fingers should be used - no usage of the palm. Food on your palms conveys that you're uncouth.
The thumb of the hand is used to catapult the food into your mouth. Do not stuff your entire fist into your mouth. Not only is it inelegant, but it's disgusting to watch.
You have to tear the rice-based items (dosas, etc.) and bread (chappatis/naans, etc.) with one hand only - children and novices use both hands. Using your thumb and fingers to tear a piece of the bread off, scoop the curry or the vegetables with the bread and eat.
For the rice, you can use your fingers and thumb to similarly move the food into your mouth. Mix a bit of curry and rice together on the plate to make a little ball, then bring it up to your mouth.

Above all, remember - it is clean, hygienic, and eco-friendly to eat with your hands.
An expert is able to eat the thinnest curry with his/her fingers and not get the palms dirty.
Do not allow your elitist notions of what is right and wrong to interfere with your learning.

Do not use your eating hand to pass food once you have begun eating with it. This is a strict no-no.
Wash your hands well with plenty of soap and hot water before the meal.
Do not try this at a restaurant until you have mastered it at home.
Practice thoroughly before eating in a public place like temples,restaurants and don't leave food in your hand while eating.
If you lick your fingers clean at the end of the meal, try to do it discreetly and quickly. In general, if you are eating in temples, etc., avoid licking your fingers at the end of the meal. Just wash your hands instead.
Strictly use your right hand only. Using left hand is considered rude.
People may be so impressed with you for trying that they might forgive your "bad manners".