From where to download the tsmc model file for nmos(slow,fast,typical) and pmos (slow,fast,typical)?
Foundry models are confidential and you can't get them without signing NDAs and being a large company or educational institution.
Use PTM models as they are free, open and contain corners for multiple nodes. http://ptm.asu.edu/
The MOSIS design service can supply TSMC SPICE models as part of a complete design kit. Contact MOSIS at www.mosis.com. Whether or not MOSIS will give you the models depends on what kind of organization you represent (educational institutions get special consideration) and whether you want models for the newest processes or for older processes.