The image below shows two possible positions of the U+093C  DEVANAGARI SIGN NUKTA (lower dot) when it appears with a U+0947  DEVANAGARI VOWEL SIGN E (ekar). Very few fonts support the second example, with the dot positioned above the top bar. One exception is Microsoft's Mangal font which supports positioning above the top bar to make clear that the nukta is associated with the ekar and not the consonant.