How to store different batches for a product(Medicines)?

Hello,
can any one help me in storing different batches for a product in Zoho creator/Zoho CRM.
eg: 1)Product name: lipitor 40mg
                       batch        expiry                  qty
                       12121        10/2012             2000
                       12345         12/2012            100
      2)Product Name: Januvia 100mg
                       batch        expiry                  qty
                       ab121        10/2014             3000
                       ab345        11/2013             10
it should be stored above manner
NOTE: Each product may have 50 different batches and each batch number has a expiry date and total quantity related to the pirticular batch.

Thanks
Bharath