Yes, dhoti can be worn without underwear, but the fabric is sheer enough that wearing one in the rain may result in something akin to the 'wet t-shirt' effect on one's backside; if this is a concern, underwear in a coordinating color would alleviate the effect.
Traditionally they wear Dhoti and Kurta Dhoti is a long sheet of cloth which is wind below the abdomen to cover the lower part of body. Kurta is a long shirt without any buttons.
Dhoti & Kurtha
No
If you are referring to the crossword clue, try 'Dhoti'.
Women wear a sari and the men wear a dhoti.
dhoti and kurta (men) and (women) wear nauvari saree
dhoti and kurta (men) and (women) wear nauvari saree
undies
it is the original description stated in the Vedas
no she will get crazy mad.
you must wear white underwear under white dhothi
A dhoti.