Well, there is no explicit prohibition on furnishing copy of ordersheet. In fact, if an assesse wants to have proof of his appearance and having filed submissions, then he can surely demand copy of ordersheet and the A.O. is bound to give the same. Ordersheet is never any personal or inter-office document which can not be granted to the assesse. I have practically requested the same in several situations and also obtained the same. In any case, under RTI, you can always demand this.