SELECT 
  vendor_plan_id 
FROM 
  cscart_wk_reffer_vendor_plans_product_status 
WHERE 
  1 
  AND vendor_plan_id = "3" 
  AND status = "1"

Query time 0.00017

JSON explain

{
  "query_block": {
    "select_id": 1,
    "nested_loop": [
      {
        "table": {
          "table_name": "cscart_wk_reffer_vendor_plans_product_status",
          "access_type": "ALL",
          "rows": 1,
          "filtered": 100,
          "attached_condition": "cscart_wk_reffer_vendor_plans_product_status.vendor_plan_id = '3' and cscart_wk_reffer_vendor_plans_product_status.`status` = '1'"
        }
      }
    ]
  }
}