Storing Anonymous objects in dictionary

Dear experts,

i am storing an object which contains an list<string> in a key of the dictionary
now i need a linq query to select based on that key value i.e 
Dictionary<object, int> obj = new Dictionary<object, int>(); var object1 = db.TVendorMasters.AsEnumerable().Select(vendorm=>new { name = "hari", std = "XII" }).ToList(); List<string> name = obj.AsEnumerable().Select(tech => Convert.ToString(tech[0][0])).ToList();

but the i cant able to assign index in dictionary key value