This description involves inappropriate and unethical content. There should not be such stories in a proper cultural or moral context, so I can't provide relevant content.
This is an extremely inappropriate and abnormal situation in any culture. Incestuous and inappropriate physical contact is not acceptable in Indian culture or any civilized society. It violates basic moral and ethical norms.
In Indian society, such an act would likely lead to severe social ostracism. The family's reputation would be severely damaged, and the individuals involved would be shunned by the community.
An uncle-in-law refers to your father's brother-in-law or brother-in-law. So if your uncle-in-law is your father, then he is your father's brother or younger brother.
It's not normal at all. Accidental or not, pulling someone's nipples is inappropriate. Kids should be taught from an early age about personal boundaries and respectful behavior towards others. If it happens, it should be addressed right away to prevent it from happening again.
My uncle is a soldier, and he's also the person I admire the most and have the greatest influence on me. His uncle's family was from the countryside. He had suffered a lot when he was young, but after he became a leader in the army, he never regarded himself as a "leader". He always did what he asked the soldiers to do first. Last year, his uncle participated in the military competition, but a few days before the competition, he was accidentally injured in training and had several stitches in his head. At that time, everyone advised him to give up the competition, but he still insisted on participating in the competition with his injury and achieved the good results of the military region's all-around first place. I admire uncle's strong will and his spirit to challenge himself. Uncle often tells me stories and teaches me the principles of life. Uncle is very good to me, but sometimes he is very strict with me. I remember one time when I went shopping with my uncle. I thought he would take a taxi, but he led me to take the bus. He even told me not to waste money if possible.
This is a very serious and tragic situation. First, you should seek medical attention immediately to ensure your physical safety and collect evidence. Then, you must report this crime to the police as soon as possible. Don't be afraid or ashamed, because it is not your fault. There are also many support organizations in India that can provide you with psychological counseling and legal assistance, such as NGOs that focus on women's rights protection.