When adding PK column in group by multiple column duplicate data linq

Question

I have a case where I need all column what in some cases there is a columns have same name property but values multiple rows same tables, like

Id name value desc

1 title abc fssf
2 title fssf
3. image abc dasdas

4. image dsf dasdas

How I need it

id name value desc

 

1 title [abc,xyz ]  fssf

2. image [abc ,dsf] dasdas