For Rent Expense Ledger,you can check following
Check different Rent Agreements to ensure that
Check TDS
Ensure that TDS is deducted in case annual rent is more than 180000 under 194I
Check Service tax
Service tax is applicable on commercial property.TDS is not applicable on Service tax component
If input of this service tax taken,then it should be ensured that it should be related to business
Check Rent of House Used by Employees
Find out which house used by which employee
Ensure that for the employees,this house has been taken into account while calculating RFA Perquisites (Rent Free Accomodation perquisite)
If any amount recovered from employees,ensure that is as per written terms of agreement
Also,sample check whether it is deducted from employee salary and taken into account while calculating Accomodation at Concessional Rent
Learn more
RFA
Section 194I
http://www.teachoo.com/945/367/
Input of Service Tax