You can land in legal trouble if you intentionally postdate a check knowing there will be no money in your account or the account will be closed by the check's date.To defraud someone in such a way for goods and services is illegal in all states.
State and federal laws cover the cashing and depositing of postdated checks, and laws vary from state to state.
It's not illegal to postdate a check, unless you're attempting to commit fraud.
In other words, till 14/01/2012 this cheque will be considered as post-dated cheque.
That is, the future date has not yet arrived (till 14/01/2012).
Also the payer might be charged a fine in which case he or she might not be happy.
Also the payer might be charged a fine in which case he or she might not be a post-dated cheque, till that date (15/01/2012) comes.
On 15/01/2012, the cheque will be no longer a post-dated cheque, but becomes a current dated cheque.
In India, a cheque should be presented for payment on or after the date that appears on the face of the cheque. A banker cannot a pay a post-dated cheque as he has no mandate to debit the account of the depositor earlier than the date of the cheque.
Note that the language of the Residential Tenancies Act simply provides that a landlord may not "require" a tenant to provide post-dated cheques.