One common type is physical labor like cleaning or gardening. For example, a boy might be punished by having to mow the lawn or wash the family car for misbehaving. Another type is restriction of privileges. A boy could lose his video game or TV time if he doesn't follow the rules.
In boys punishment stories, detention is quite common. It could be in - school detention where the boy has to sit quietly in a room during free time. Also, extra homework or writing lines as a punishment occurs often. For instance, writing 'I will not talk in class' a hundred times can be a punishment for being disruptive in class. Verbal scolding is also common which makes the boy feel ashamed of his actions.
Grounding is quite common. For example, when a child misbehaves, they are not allowed to go out and socialize for a period of time. Another is taking away privileges like using electronic devices or playing with toys.
Extra work or chores can be a form of punishment. I read a story where a child had to do all the dishwashing for a week as punishment for breaking a family heirloom. This not only punishes the child but also makes them more careful and responsible.
Disobedience is a common one. For example, when children don't follow the rules set by their parents like not going to bed on time or not doing their homework. Another reason can be lying, as honesty is highly valued in a family.
Some Indian stories mention punishment through peer - pressure. The misbehaving student is made to work with a group of well - behaved students who will keep an eye on them. This encourages the naughty student to conform to good behavior while also promoting a sense of community within the school.
Forgetting spells could be a punishment too. If she offended a powerful wizard within the school grounds, they could cast a spell on her that makes her forget some of the spells she has learned recently. She would then have to work hard to relearn them, which would be a real struggle for her.
A common theme is learning a lesson. For example, in stories where children are punished for lying, they learn that honesty is important. Another theme is justice. When a wrongdoer is punished, it shows that there are consequences for bad actions.
Manual labor as a punishment also exists. If a boy was found vandalizing school property, like scribbling on the walls. He could be made to clean the school corridors or help with the gardening for a week. This helps him learn to respect the school environment and also makes him realize the consequences of his actions.
I heard of a boy who skipped his study hours to play games. His punishment was that he was not allowed to use any electronic devices for a month. This made him realize that he should prioritize his studies over entertainment and also follow the school's study schedule.
No, diaper punishment boy stories are not very common. In most modern societies, such forms of punishment are considered inappropriate and may even be seen as a form of abuse.
Since I'm not clear on what 'girl murga' punishment exactly is, it's hard to say if the stories are common. It could be something very rare or specific to a small group or area.