Tax exemption package for employees

Hi All,

What should be best tax exemption package so that employees can save their tax? And what will be liablities for both employer and employees? As per my research found following component but it will not be applicable for all? My major concern will be for IT companies. Can you please explain in details following components? 

It will help many companies and employees.

Books & Periodicals
Petrol / drivers salary
Medical
LTA
Mobile & Internet
Proffessional Attire
Education Allowance
Meal Voucher
Professional Development Allowance
MBO
CEA

Thanks!

Tom