3000 is not a big number to start a war. phada laina hay to sahi tarah lo bayghairto. deploy at least 300000 troops so that the world may enjoy some quality stuff.
on a serious note. nothing will happen. soon it will be over . may be in a week or two. both china and india are fast growing economies and neither can afford a war or a border skirmish of large extent. indian army will see lot many resignations if this stand off prolongs. their soldiers are already mentally stressed due to so many factors like continuous oppression in their units by officers, their own terrorist activities which they do in kashmir haunt them in dreams and above all the fear of attacks by freedom fighters that can occur at any time . another hot zone and "sir je main ja raha mulk ap ka hawalay" .
china also cant afford to have hot border with india. they tensions in south china sea and korean peninsula are sufficient to keep them busy.
then go ahead. take initiative.
instead of direct border skirmishes with india china should arm the freedom fighters and separatists in north east of india. make them bleed slowly.