fix: Add mandatory depends on condition for export type field
diff --git a/erpnext/regional/india/setup.py b/erpnext/regional/india/setup.py
index b4f146c..2d6b913 100644
--- a/erpnext/regional/india/setup.py
+++ b/erpnext/regional/india/setup.py
@@ -642,7 +642,8 @@
 				'fieldtype': 'Select',
 				'insert_after': 'gst_category',
 				'depends_on':'eval:in_list(["SEZ", "Overseas"], doc.gst_category)',
-				'options': '\nWith Payment of Tax\nWithout Payment of Tax'
+				'options': '\nWith Payment of Tax\nWithout Payment of Tax',
+				'mandatory_depends_on': 'eval:in_list(["SEZ", "Overseas"], doc.gst_category)'
 			}
 		],
 		'Customer': [
@@ -660,7 +661,8 @@
 				'fieldtype': 'Select',
 				'insert_after': 'gst_category',
 				'depends_on':'eval:in_list(["SEZ", "Overseas", "Deemed Export"], doc.gst_category)',
-				'options': '\nWith Payment of Tax\nWithout Payment of Tax'
+				'options': '\nWith Payment of Tax\nWithout Payment of Tax',
+				'mandatory_depends_on': 'eval:in_list(["SEZ", "Overseas", "Deemed Export"], doc.gst_category)'
 			}
 		],
 		'Member': [