I resigned from my work of limited term contract...

If the worker terminates the limited contract illegally, the worker shall pay compensation to the employer. It shall not exceed one and a half months' salary in addition to the employer's right to request a ban against the worker.
A ban against the worker cannot be avoided if the worker terminates the specified contract of employment unlawfully
Here is the text of the UAE Labor Law regarding your inquiry:
Article (116):
Where a contract is revoked by the worker for reasons other than those stipulated in Article (121), he shall be required to compensate the employer for any damage the latter sustains as a result, provided that the amount of compensation shall not exceed half a month wage for three months or for the remaining period of the contract, whichever is shorter, unless otherwise stipulated in the contract.