CASE I
Since the Income from the employer is less then the Floor limit of Taxable Income Employer need not deduct Tax, How ever if the Employee has reported his Other Income by virtue of which the income exceeds the Floor Limit the Employer has to deduct Tax.
Case II
If this is the only income in the year in consideration till such time, & Later in the same year if the person gets employed with some other employer & reports this previous employers Income of Rs 150000/- The New employer will calculate Tax on Total Income adding Prev Inc 1.50 & Deduct Tax.
Case III
Suppose the employee does not report his previous employers Income earned to the subsequent, then the second employer will Just do the deductions as applicable to the Income earned by the Employee from his company,
How ever in case III situation the employee will file his return declaring his total Income for the full year earned from all employers & all sources & Pay diferrential Taxes as calculated after taking credit for TDS deducted by his Employers inchain