In which year was the first case of $AIDS$ infection reported in India?

Consider the following statements about $AIDS$.
$I.$ $AIDS$ patient become easily infected by bacteria,viruses and even parasites.
$II.$ The person is unable to protect himself against any infection.
$III.$ National $AIDS$ Control Organisation $(NACO)$ and non-governmental organizations are trying their best to educate people about $AIDS$.
Which of the statements given above are correct?

What does $HIV$ cause a reduction in?

The causative organism of $AIDS$ spreads by:

Which of the following diseases is not congenital?

The presence of $HIV$ can be detected by these methods:
$(i)$ $ELISA$
$(ii)$ $WB$ $Test$ (Western Blot)
$(iii)$ $VB$ $Test$
$(iv)$ $ALISA$