Style of invoicing under partial reverse charge

the invoice issued by the Service provider has been correcty made

the invoice is prepared correctly...they can mention in foot note that the balance has to be paid directly by the recepient to the govt.

Yes the amounts mentioned by them is the correct Way,

To get even more clarity In brackets they would have mentioned 25% of 12.36 and the rest is the liability of the receiver.

Bill is ok. Alternatively he can add 12.36% and then deduct that portion of the tax to be paid by service receiver.

The invoice is correct; You may refer to the pt no.10.1.2 of Education Guider and Rule 4A of the Service Tax Rules, 1994;