diff --git a/eda-frontend/src/components/SchematicEditor/SimulationProperties.js b/eda-frontend/src/components/SchematicEditor/SimulationProperties.js
index 8b3556cd..434de544 100644
--- a/eda-frontend/src/components/SchematicEditor/SimulationProperties.js
+++ b/eda-frontend/src/components/SchematicEditor/SimulationProperties.js
@@ -775,7 +775,7 @@ export default function SimulationProperties (props) {
       if (typeSimulation !== 'noiseAnalysis') {
         controlBlock = `\n.control \nrun \nprint ${cblockline} > data.txt \n.endc \n.end`
       } else {
-        controlBlock = `\n.control \nrun \n${noiseMode} \nprint ${cblockline} > data.txt \n.endc \n.end`
+        controlBlock = `\n.control \nrun \n${noiseMode}\nprint all > data.txt \n.endc \n.end`
       }
       // console.log(controlLine)
 
diff --git a/esim-cloud-backend/simulationAPI/helpers/parse.py b/esim-cloud-backend/simulationAPI/helpers/parse.py
index 08bd8953..5e16945c 100644
--- a/esim-cloud-backend/simulationAPI/helpers/parse.py
+++ b/esim-cloud-backend/simulationAPI/helpers/parse.py
@@ -1,39 +1,43 @@
 import re
 import sys
 
+NGSPICE_INTERNAL_VARS = {
+    'false', 'true', 'boltz', 'c', 'pi', 'kelvin', 'e',
+    'echarge', 'i', 'infinity', 'nan', 'no', 'yes', 'planck'
+}
 
 def extract_data_from_ngspice_output(pathToFile):
     """ Parses the output file generated by ngspice and
     returns a json containing points to plot graph.
     """
-
     try:
         with open(pathToFile, 'r') as f:
             f_contents = f.readlines()
             graph = False
-
             curernt_headers = []
             total_number_of_tables = 0
             if(len(f_contents) > 3):
                 if('---' in f_contents[2]):
                     graph = True
-
             if(not graph):
                 json_data = {"data": [], "graph": "false"}
                 for line in f_contents:
                     contents_of_line = line.split()
+                    if len(contents_of_line) >= 1:
+                        var_name = contents_of_line[0].lower().rstrip('=').split('(')[-1].rstrip(')')
+                        if var_name in NGSPICE_INTERNAL_VARS:
+                            continue
                     json_data["data"].append(contents_of_line)
-
             else:
                 json_data = {"data": [], "graph": "true"}
                 for line in f_contents:
                     contents_of_line = line.split()
-
+                    if len(contents_of_line) >= 1:
+                        var_name = contents_of_line[0].lower().rstrip('=').split('(')[-1].rstrip(')')
+                        if var_name in NGSPICE_INTERNAL_VARS:
+                            continue
                     if('Index' in contents_of_line):
-                        # line_set = remove_duplicate_items_from_list(
-                        #     contents_of_line)
                         line_set = contents_of_line
-
                         if(line_set != curernt_headers):
                             curernt_headers = line_set
                             json_data["data"].append(
@@ -41,40 +45,25 @@ def extract_data_from_ngspice_output(pathToFile):
                             index = len(json_data["data"]) - 1
                             for x in range(2, len(curernt_headers)):
                                 json_data["data"][index]["y"].append([])
-
                             for x in range(1, len(curernt_headers)):
                                 json_data["data"][index]["labels"].append(
                                     curernt_headers[x])
                                 total_number_of_tables += 1
-
                     else:
                         m = re.match('[0-9]+', line)
                         if(m):
                             index = len(json_data["data"]) - 1
                             data = json_data["data"][index]
                             data["x"].append(contents_of_line[1])
-
                             for x in range(len(data["y"])):
                                 data["y"][x].append(contents_of_line[x+2])
                 json_data["total_number_of_tables"] = total_number_of_tables -\
                     len(json_data["data"])
         return json_data
-
     except IOError as e:
         print('Cannot Open File')
         raise e
 
-
-# def remove_duplicate_items_from_list(line_list):
-#     res = []
-#     for i in line_list:
-#         if i not in res:
-#             res.append(i)
-#     return res
-
-
-# for testing provide the filepath as command line argument
 if __name__ == "__main__":
-
     filePath = sys.argv[1]
     print(extract_data_from_ngspice_output(filePath))