try this
plan_insert_command += "INSERT INTO QAPower.HDR_COUNTRY_PLAN(COUNTRY_ID,ACCOUNT_ID,PLAN_ID,PLAN_STATUS,DEFAULT_PLAN,INDIAN_RUPEES,US_DOLLAR,EURO,ADD_USER_ID,ADD_USER_DATE)" + "VALUES([QAPower].[GET_COUNTRY_ID]('" + country_name + "'),1,1,1,1," + int.Parse(dt_country_plan.Rows[0][0].ToString()) + "," + int.Parse(dt_country_plan.Rows[0][1].ToString()) + "," + int.Parse(dt_country_plan.Rows[0][2].ToString()) + ",1,getdate())";