diff --git a/erpnext/regional/india/utils.py b/erpnext/regional/india/utils.py
index 88c350a..a152797 100644
--- a/erpnext/regional/india/utils.py
+++ b/erpnext/regional/india/utils.py
@@ -851,7 +851,7 @@
 		# if its the first depreciation
 		if depreciable_value == asset.gross_purchase_amount:
 			# as per IT act, if the asset is purchased in the 2nd half of fiscal year, then rate is divided by 2
-			diff = date_diff(asset.available_for_use_date, row.depreciation_start_date)
+			diff = date_diff(row.depreciation_start_date, asset.available_for_use_date)
 			if diff <= 180:
 				rate_of_depreciation = rate_of_depreciation / 2
 				frappe.msgprint(