Sir, if i invest say 1 lakh a month from a salary of say 2 lakh from april 2017 to jan 2018 i.e in a period of 10 months i have invested 10 lakhs from my income of 20 lakhs and as of march 2018 the investment has lost its value and is about only 2 lakhs (i.e i have lost 8 lakhs) so would i have to pay Income tax for the entire 24 lakhs i earned or would i have to pay for 16 lakhs that i have??