Swagger API which is having query string

You can't describe query parameters as part of the path in Swagger. You have to declare those explicitly as query parameters.

"/v1/products":{  
         "get":{  
            "tags":[  
               "Search Text"
            ],
            "summary":"Get Products by searching text, countrycode, page number, pagesize, project and country(optional)",
            "description":"Get Products by searching text, countrycode, page number, pagesize, project and country(optional)",
            "operationId":"getProductName",
            "produces":[  
               "application/json",
               "application/xml"
            ],
            "parameters":[  
               {  
                  "name":"searchText",
                  "in":"query",
                  "description":"The Product that needs to be fetched",
                  "required":true,
                  "type":"string"
               },
               {  
                  "name":"ctrCode",
                  "in":"query",
                  "description":"The Product locale needs to be fetched. Example=en-GB, fr-FR, etc.",
                  "required":true,
                  "type":"string"
               },
               {  
                  "name":"pageSize",
                  "in":"query",
                  "description":"The Product PageSize that needs to be fetched. Example=10, 20 etc.",
                  "required":true,
                  "type":"number"
               },
               {  
                  "name":"pageNo",
                  "in":"query",
                  "description":"The Product pageNo that needs to be fetched. Example=1,2 etc.",
                  "required":true,
                  "type":"number"
               },
               {  
                  "name":"project",
                  "in":"query",
                  "description":"The Project that needs to be fetched. Example=Mypact, DSL etc.",
                  "required":true,
                  "type":"string"
               },
               {  
                  "name":"country",
                  "in":"query",
                  "description":"The Country that needs to be fetched. Example=France, India etc.",
                  "required":false,
                  "type":"string"
               }
            ],
            "responses":{  
               "200":{  
                  "description":"successful operation",
                  "schema":{  
                     "$ref":"#/definitions/Products"
                  }
               },
               "400":{  
                  "description":"Invalid Product_id supplied"
               },
               "404":{  
                  "description":"Product not found"
               }
            }
         }
      }

Your IN parameter needs to be "query" not "path"

This should work:

"parameters": [
  {  
    "name":"country",
    "in":"query",
    "description":"The Country that needs to be fetched. Example=France, India etc.",
    "required":false,
    "type":"string"
  }
]