diff --git a/erpnext/education/doctype/student/student.js b/erpnext/education/doctype/student/student.js
index b6e741c..66df6b9 100644
--- a/erpnext/education/doctype/student/student.js
+++ b/erpnext/education/doctype/student/student.js
@@ -31,8 +31,9 @@
 frappe.ui.form.on('Student Guardian', {
 	guardians_add: function(frm){
 		frm.fields_dict['guardians'].grid.get_field('guardian').get_query = function(doc){
-			var guardian_list = [];
+			let guardian_list = [];
 			if(!doc.__islocal) guardian_list.push(doc.guardian);
+			
 			$.each(doc.guardians, function(idx, val){
 				if (val.guardian) guardian_list.push(val.guardian);
 			});
@@ -40,3 +41,21 @@
 		};
 	}
 });
+
+
+frappe.ui.form.on('Student Sibling', {
+	siblings_add: function(frm){
+		frm.fields_dict['siblings'].grid.get_field('student').get_query = function(doc){
+			let sibling_list = [frm.doc.name];
+			if(!doc.__islocal) sibling_list.push(doc.student);
+			
+			$.each(doc.siblings, function(idx, val){
+				if (val.student && val.studying_in_same_institute == 'YES') {
+					sibling_list.push(val.student);
+			}
+
+			});
+			return { filters: [['Student', 'name', 'not in', sibling_list]] };
+		};
+	}
+});
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