Hello, this is ritesh , i am 27 years old , and my girlfriend is 22 yars old , we are in relationship between 4 years , but now my girlfriend parents

Hello, this is ritesh , i am 27 years old , and my girlfriend is 22 yars old , we are in relationship between 4 years , but now my girlfriend parents not accepting me , they are forcing her to marry to some other. they have locked her in her house and giveing no chance to meet me or call me , i have tryed to talk with then but they are not agree to talk , so can i tack any leagle help against her parents , can you please advice me for that . what i can do Langley for her .