diff --git a/iPDC/src/Dynamic_time_warping.c b/iPDC/src/Dynamic_time_warping.c
index 53c6a73..c9dff7a 100644
--- a/iPDC/src/Dynamic_time_warping.c
+++ b/iPDC/src/Dynamic_time_warping.c
@@ -60,6 +60,13 @@ struct DTWvollist
 struct DTWfreqlist *dtwhead = NULL;
 struct DTWvollist *dtwheadvol = NULL;
 
+/**
+ * @brief It is used to check event detection using Dynamic Time Warping using frequency
+ *        called in data_vis.c
+ *
+ * @param df data frame
+ * @return int
+ */
 int DTWfreqDistance(struct data_frame *df)
 {
     if (dtwhead == NULL)
@@ -186,6 +193,13 @@ int DTWfreqDistance(struct data_frame *df)
     }
 }
 
+/**
+ * @brief It is used to check event detection using Dynamic Time Warping using voltage
+ *        called in data_vis.c
+ *
+ * @param df data frame
+ * @return int
+ */
 int DTWvolDistance(struct data_frame *df)
 {
     if (dtwheadvol == NULL)
@@ -342,6 +356,13 @@ int DTWvolDistance(struct data_frame *df)
     }
 }
 
+/**
+ * @brief It is used to check event detection using Dynamic Time Warping using frequency and voltage
+ *        called in data_vis.c
+ *
+ * @param df data frame
+ * @return int
+ */
 int DTWfreqvolDistance(struct data_frame *df)
 {
     return DTWfreqDistance(df) && DTWfreqvolDistance(df);
diff --git a/iPDC/src/Event_detect.c b/iPDC/src/Event_detect.c
index 15236ff..51e1f0f 100644
--- a/iPDC/src/Event_detect.c
+++ b/iPDC/src/Event_detect.c
@@ -7,7 +7,7 @@
  * Copyright (C) 2022-2023 Kedar V. Khandeparkar
  * Copyright (C) 2022-2023 Pavan Kumar V Patil
  * Copyright (C) 2022-2023 Karthik Murakonda
- * 
+ *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version 2
@@ -36,6 +36,7 @@
 #include "parser.h"
 #include "Event_detect.h"
 
+/*Used in maintaining Nodes for all PMUS*/
 struct freqlist
 {
     int idcode;
@@ -44,6 +45,7 @@ struct freqlist
     struct freqlist *next;
 };
 
+/*Used in maintaining Nodes for all PMUS*/
 struct vollist
 {
     int idcode;
@@ -55,6 +57,13 @@ struct vollist
 struct freqlist *head = NULL;
 struct vollist *headvol = NULL;
 
+/**
+ * @brief It is used to check event detection using Basic appraoch using freq
+ *        called in data_vis.c
+ *
+ * @param df data frame
+ * @return gboolean
+ */
 gboolean attack_detect_freq(struct data_frame *df)
 {
     if (head == NULL)
@@ -124,6 +133,13 @@ gboolean attack_detect_freq(struct data_frame *df)
     }
 }
 
+/**
+ * @brief It is used to check event detection using Basic appraoch using voltage
+ *        called in data_vis.c
+ *
+ * @param df data frame
+ * @return gboolean
+ */
 gboolean attack_detect_vol(struct data_frame *df)
 {
     float CURR_vol;
@@ -223,9 +239,14 @@ gboolean attack_detect_vol(struct data_frame *df)
     }
 }
 
+/**
+ * @brief It is used to check event detection using Basic appraoch using voltage and frequency
+ *        called in data_vis.c
+ *
+ * @param df data frame
+ * @return gboolean
+ */
 gboolean attack_detect_freq_vol(struct data_frame *df)
 {
     return attack_detect_freq(df) && attack_detect_vol(df);
-}
-
-/* pavan changes */
+}
\ No newline at end of file
diff --git a/iPDC/src/Kmeans.c b/iPDC/src/Kmeans.c
index a201ccd..0952ec7 100644
--- a/iPDC/src/Kmeans.c
+++ b/iPDC/src/Kmeans.c
@@ -7,7 +7,7 @@
  * Copyright (C) 2022-2023 Kedar V. Khandeparkar
  * Copyright (C) 2022-2023 Pavan Kumar V Patil
  * Copyright (C) 2022-2023 Karthik Murakonda
- * 
+ *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version 2
@@ -50,6 +50,13 @@ struct kmeans1
 
 struct kmeans1 *headk = NULL;
 
+/**
+ * @brief It is used to check event detection using Kmeans clustering using frequency
+ *        called in data_vis.c
+ *
+ * @param df data frame
+ * @return gboolean
+ */
 gboolean kmeans(struct data_frame *df)
 {
     if (headk == NULL)
diff --git a/iPDC/src/Kmeans2.c b/iPDC/src/Kmeans2.c
index 4478a96..5b33503 100644
--- a/iPDC/src/Kmeans2.c
+++ b/iPDC/src/Kmeans2.c
@@ -36,6 +36,7 @@
 #include <string.h>
 #include <stdbool.h>
 
+/*Used for storing points*/
 struct Point
 {
     long double x, y;    // coordinates
@@ -43,6 +44,7 @@ struct Point
     long double minDist; // default infinite dist to nearest cluster
 };
 
+/*used for storing centroid of clusters formed*/
 struct centroid
 {
     long double x, y;
@@ -50,6 +52,7 @@ struct centroid
     unsigned long long int count;
 };
 
+/*used to maintain nodes for all PMUs*/
 struct Kmeans2
 {
     int idcode;
@@ -64,11 +67,23 @@ struct Kmeans2
 
 struct Kmeans2 *head_of_kmeans2 = NULL;
 
+/**
+ * @brief It finds data between point A and B
+ *
+ * @param  A,B
+ * @return long double
+ */
 long double distance(struct Point *A, struct Point *B)
 {
     return (((A->x - B->x) * (A->x - B->x)) + ((A->y - B->y) * (A->y - B->y)));
 }
 
+/**
+ * @brief It finds data between centroid A and point B
+ *
+ * @param  A,B
+ * @return long double
+ */
 long double distance2(struct centroid *A, struct Point *B)
 {
     return (((A->x - B->x) * (A->x - B->x)) + ((A->y - B->y) * (A->y - B->y)));
@@ -109,6 +124,13 @@ int *getRandoms(int lower, int upper, int count)
     }
 }
 
+/**
+ * @brief It is used to check event detection using Kmeans clustering using voltage and frequency
+ *        called in data_vis.c
+ *
+ * @param df data frame
+ * @return bool
+ */
 bool Kmeans2(struct data_frame *df)
 {
     if (head_of_kmeans2 == NULL)