Tax implication on loss of capital investment

Respected Sir/Madam,

                      Please let me know how to treat loss from capital investment in partnership firm. Lets understand with a example

I am a partner in ABC & Co. It has been established in 2015 and made some capital investments of Rs.5,00,000. In my personal books i shown this as investment. Now we are going to dissolute the firm we dont have any machinery so i am going to incure loss of Rs.500,000.

(i) How to show this loss in my books, as a loss from investment? if yes short term or long term.

(ii) Which ITR i need to file