The Indians just feel that they are the center of attention for all PLA operations ... which basically amounts to exaggerated self-importance. They think that their air force is of such high priority that the Chinese would send J-20s to the border. Classic self delusion.There's no way PLAAF is moronic enough to fly J-20 anywhere near any borders (reminds me of that stupid claim months back about J-20 flying through Korea )
They won't give the Indians a chance to take a free look and evaluation of J-20 during peacetime. If J-20 is near Indian borders, it'll there to drop and fire ordinance. Any less than that, it's far within Chinese borders. PLAAF has Su-35 for the tit-for-tat border mock fighting if it ever escalates to that level with the Indians.