diff --git a/umac/dfs/core/src/dfs.h b/umac/dfs/core/src/dfs.h
index 6d07307812bb..f5d67b7b251b 100644
--- a/umac/dfs/core/src/dfs.h
+++ b/umac/dfs/core/src/dfs.h
@@ -1278,6 +1278,7 @@ struct wlan_dfs {
 	uint16_t       dfs_agile_rcac_freq_ucfg;
 	struct ch_params dfs_rcac_ch_params;
 #endif
+	uint16_t       dfs_lowest_pri_limit;
 };
 
 #if defined(QCA_SUPPORT_AGILE_DFS) || defined(ATH_SUPPORT_ZERO_CAC_DFS)
diff --git a/umac/dfs/core/src/dfs_confirm_radar.h b/umac/dfs/core/src/dfs_confirm_radar.h
index 1a3c28c2bec2..363fe0054c46 100644
--- a/umac/dfs/core/src/dfs_confirm_radar.h
+++ b/umac/dfs/core/src/dfs_confirm_radar.h
@@ -25,6 +25,12 @@
 #include "dfs_internal.h"
 
 #define DFS_INVALID_PRI_LIMIT 100  /* should we use 135? */
+/* The time interval between two sucessive pulses
+ * in case of w53 chirp type can be as low as 50us.
+ * Experimentally the PRI limit was found to be as
+ * low as 15us.
+ */
+#define DFS_INVALID_PRI_LIMIT_MKKN 15
 #define FRAC_PRI_SCORE_ARRAY_SIZE 40
 
 /**
diff --git a/umac/dfs/core/src/filtering/dfs_partial_offload_radar.c b/umac/dfs/core/src/filtering/dfs_partial_offload_radar.c
index 9c75eb20980b..c45686d20389 100644
--- a/umac/dfs/core/src/filtering/dfs_partial_offload_radar.c
+++ b/umac/dfs/core/src/filtering/dfs_partial_offload_radar.c
@@ -437,6 +437,7 @@ void dfs_get_po_radars(struct wlan_dfs *dfs)
 		dfs_debug(dfs, WLAN_DEBUG_DFS_ALWAYS, "FCC domain");
 		rinfo.dfsdomain = DFS_FCC_DOMAIN;
 		dfs_assign_fcc_pulse_table(&rinfo, target_type, tx_ops);
+		dfs->dfs_lowest_pri_limit = DFS_INVALID_PRI_LIMIT;
 		break;
 	case DFS_CN_DOMAIN:
 		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS,
@@ -452,6 +453,7 @@ void dfs_get_po_radars(struct wlan_dfs *dfs)
 		rinfo.numradars = QDF_ARRAY_SIZE(dfs_china_radars);
 		rinfo.b5pulses = NULL;
 		rinfo.numb5radars = 0;
+		dfs->dfs_lowest_pri_limit = DFS_INVALID_PRI_LIMIT;
 		break;
 	case DFS_ETSI_DOMAIN:
 		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS, "ETSI domain");
@@ -469,6 +471,7 @@ void dfs_get_po_radars(struct wlan_dfs *dfs)
 		}
 		rinfo.b5pulses = NULL;
 		rinfo.numb5radars = 0;
+		dfs->dfs_lowest_pri_limit = DFS_INVALID_PRI_LIMIT;
 		break;
 	case DFS_KR_DOMAIN:
 		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS,
@@ -487,6 +490,7 @@ void dfs_get_po_radars(struct wlan_dfs *dfs)
 		rinfo.numradars = QDF_ARRAY_SIZE(dfs_korea_radars);
 		rinfo.b5pulses = NULL;
 		rinfo.numb5radars = 0;
+		dfs->dfs_lowest_pri_limit = DFS_INVALID_PRI_LIMIT;
 		break;
 	case DFS_MKKN_DOMAIN:
 		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS, "MKKN domain");
@@ -494,6 +498,7 @@ void dfs_get_po_radars(struct wlan_dfs *dfs)
 		rinfo.dfs_radars = dfs_mkk4_radars;
 		rinfo.numradars = QDF_ARRAY_SIZE(dfs_mkk4_radars);
 		dfs_assign_mkk_bin5_radars(&rinfo, target_type, tx_ops);
+		dfs->dfs_lowest_pri_limit = DFS_INVALID_PRI_LIMIT_MKKN;
 		break;
 	case DFS_MKK4_DOMAIN:
 		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS, "MKK4 domain");
@@ -501,6 +506,7 @@ void dfs_get_po_radars(struct wlan_dfs *dfs)
 		rinfo.dfs_radars = dfs_mkk4_radars;
 		rinfo.numradars = QDF_ARRAY_SIZE(dfs_mkk4_radars);
 		dfs_assign_mkk_bin5_radars(&rinfo, target_type, tx_ops);
+		dfs->dfs_lowest_pri_limit = DFS_INVALID_PRI_LIMIT;
 		break;
 	default:
 		dfs_info(dfs, WLAN_DEBUG_DFS_ALWAYS, "UNINIT domain");
diff --git a/umac/dfs/core/src/filtering/dfs_process_radarevent.c b/umac/dfs/core/src/filtering/dfs_process_radarevent.c
index d3e2cb05b91f..ef3aadac9272 100644
--- a/umac/dfs/core/src/filtering/dfs_process_radarevent.c
+++ b/umac/dfs/core/src/filtering/dfs_process_radarevent.c
@@ -298,7 +298,7 @@ static bool dfs_is_real_radar(struct wlan_dfs *dfs,
 			 * We do not give score to PRI that is lower then the
 			 * limit.
 			 */
-			if (search_bin < DFS_INVALID_PRI_LIMIT)
+			if (search_bin < dfs->dfs_lowest_pri_limit)
 				break;
 
 			/*
@@ -1248,7 +1248,7 @@ static inline void dfs_conditional_clear_delaylines(
 	 * false detects.
 	 */
 
-	if (diff_ts < DFS_INVALID_PRI_LIMIT) {
+	if (diff_ts < dfs->dfs_lowest_pri_limit) {
 		dfs->dfs_seq_num = 0;
 		dfs_reset_alldelaylines(dfs);
 		dfs_reset_radarq(dfs);