Legal Compliance's For Running A Software Firm - XLS Download

What are the Mandatory Legal Compliance's for running a software firm? I need the clarity in the following laws:
Minimum Wages Act
Payroll Structure
Bonus Act
Offer Letter/Appointment Letter/Appraisal Letter/Relieving Letter/Exp Letter
Labor Law
EPF
How to register for paying Professional Tax
How to calculate TDS for employees and how to pay
What is the Leave Policy
Is ESI or Insurance is Mandatory?
What if I have the arrears to pay for all the above
Please send me the detailed description for all the above points.
I appreciate your support in advance.

Mandatory Legal Compliance's for running a software firm?
Minimum Wages ActAs per Minimum Wages Act of Karnataka.
Payroll Structure
Find attached sheet where you can calculate TDS also.
Labor Law
Apply for EPF registration and ESIC registration
EPF
Applicable for all employees
How to register for paying Professional Tax
Apply online at Sales Tax department
How to calculate TDS for employees and how to pay
Refer Attached Sheet. Before that you need to apply for Tax Deduction account No.
What is the Leave Policy
Leave policy you can draft some leaves are mandatory like, 26th Jan, 1st May (Labour Day), 15th Aug. etc.
Is ESI or Insurance is Mandatory?
ESIC mandatory whose salary 15000/- or below
What if I have the arrears to pay for all the above
Arrears you can pay but I would suggest pay like incentive.

what is this somani
EPF
Applicable for those whose salary below 15000/-
please replace 6500 on the place of 15000

First, I thank for you valuable response.
I am still having the doubt whether ESI is mandatory for a software firm also? and what if the employee salary is more than 15,000. Nothing is mandatory? can we take any private insurance rather ESI.
Thanks
Shiva

TDS working on salary alone with Computation..

Thanks for the post somani, but I am still waiting for the response of other question: Is it mandatory to provide the insruance/ESI even for a IT firm employees?
Thanks
Shiva