What is the best tips to discipline the toddlers at home?

Kids are pretty reckless and restless when it comes to stay and obey rules. Often they come up with a series of tantrums and drama. They react this way primarily because of lack of concentration and stability to stay focused on a single task. This also can be denial to obey and do things that they like without any distinction from right to wrong. They like to do whatever their guts tell them, and when they are opposed, they throw tantrums and create a scenario.
But how to cope with these tantrums they throw?
It is very simple. We have to be strict. If they get away with the tantrums they throw, by the time they grow up they'll be offender and disturbed by everything that is happening around. They'll become very annoying and will bother every person around them with their behavior.
So we have to be strict. First we tell them sweetly, if they dont listen we'll try to explain them sweetly 2 more time. If still it doesn't help, then we become strict and we will have to scold them. Even if then they dont understand, we may have to yell at them.
This is the only way to control and cope the tantrums thrown by kids.