Clarification on LTCG tax

Nitika (Sr Executive) (28 Points)

04 April 2021  
I have purchased share worth Rs 120000/- on 2008 and I have sold the same in 2021 on 27th March March at Rs 500000/-. I have received money on my account on 31st March 2021. I have not paid any advance tax yet. Please help me with how much tax I need to pay and by when?.