we are three brother residing in mothers property two floors constructed , but i dont want to stay there , the option is for two person only , my brother not allowing to vacate the position , am also residing outside what to do, can my mother force him to vacate the house or she forcely lock that flat

In this situation, if your mother is the legal owner of the property, she has the right to ask your brother to vacate one of the floors, especially if there is a need for one floor to be vacant. Your mother can give notice to your brother asking him to vacate the premises and if he does not comply, she may have to take legal action.

Your mother can initiate legal proceedings by filing a suit for eviction against your brother in the appropriate court. The specific legal procedures and timelines may vary depending on the state where the property is located. In most cases, however, your mother will need to give your brother a reasonable notice period before initiating legal action.

Alternatively, your mother can also consider negotiating with your brother to voluntarily vacate the premises through a mutual agreement. If such negotiations fail and your brother continues to occupy the premises unlawfully, legal action may be necessary.

It is important to consult with a lawyer who specializes in property and tenancy laws in the relevant jurisdiction to understand the specific legal options available in this situation.