The Indian gov’t doc at http://tdil.mit.gov.in/ori-guru-telu.pdf describes the conjunct shown in the attached PNG as being pronounced as though NNA + VIRAMA + DDA (0B21). The component attached to the NNA otherwise represents TA (0B24), however.
My question is this: should this conjunct be encoded as < 0B23 NNA, 0B4D VIRAMA, 0B24 TA > or as < 0B23 NNA, 0B4D VIRAMA, 0B21 DDA >? Peter Peter Constable Globalization Infrastructure and Font Technologies Microsoft Windows Division
<<attachment: NN-DDA.png>>

