Random Function not working as expected.

I have one integer as follows:

int densityrandom = generateRandom();

And I want random values to be assigned to "densityrandom" every time. So I am passing value from generateRandom() to densityrandom. Method is as follows:

private static int generateRandom()
        {
            Random rnd = new Random();
            int random = rnd.Next(1, 8);
            return random;
        }

Each time it is generating same value if put in the for loop.

Like

for(int i = 0; i<10; i++)
{
   int densityrandom =  generateRandom();
   Console.WriteLine("int is" + densityrandom);
}

It is printing similar value 10 times. What is wrong with the code?

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