Tax implications on stcg on sell of listed shares

In case of an residant individual, 

What are the tax implications on both the below cases ? 

Case 1:

Gross Salary income : Rs 2,75,000
Income from Other Sources :Rs 10,000
Deduction under 80 C : Rs 1,50,000
short term capital gains on sale of shares listed on stock exchange : Rs 1,00,000

Case 2:

Salary income : 0
income from Other sources : 0
Deduction under 80C : 1.5 lacs
short term capital gains on sale of shares listed on stock exchange : Rs 3 lac

Request to please clarify