Excise/service tax on mfg/jobwork of diamond jewelleery...?

in adddition to above i came to know legal wording as bellow....

so hw can we advie to client from all triangle of ST/Excise/TDS provision with 150/400 & 9/10Lakhs Lakhs T/o Limit

As per Notification No.25/2012-ST,hereby exempts the following taxable services from the whole of the service tax leviable thereon under section 66B of the said Act, namely:- 30. Carrying out an intermediate production process as job work in relation to - (a) agriculture, printing or textile processing; (b) cut and polished diamonds and gemstones; or plain and studded jewellery of gold and other precious metals, falling under Chapter 71 of the Central Excise Tariff Act ,1985 (5 of 1986); (c) any goods on which appropriate duty is payable by the principal manufacturer; or (d) processes of electroplating, zinc plating, anodizing, heat treatment, powder coating, painting including spray painting or auto black, during the course of manufacture of parts of cycles or sewing machines upto an aggregate value of taxable service of the specified processes of one hundred and fifty lakh rupees in a financial year subject to the condition that such aggregate value had not exceeded one hundred and fifty lakh rupees during the preceding financial year.