Dear Jyoti,
Return filing is the responsibility of the assessee(employee in this case)
Whereas Furnishing Form 16 is the responsibility of Employer
Now Salary will be taxable on receipt or due basis whichever is earlier basis whether Employee has got Form 16 or not. The method of computation will not change.
However if Employer has not furnished Form 16 even after repeated reminders by the employee then this can be taken as reasonable cause for not filing return (i: eAO may not levy penalty u/s 271 F) but again this thing will not relieve employee from his duty to file return..
Further, Employer will be separately liable under the act for not furnishing TDS certifficate (Form 16) within time prescribed...