Model geometry messed up after applying limited dissolve See this was a neat structure having too many vertices and after applying limited dissolve its vertices got a little less but its geometry messed up inside the messh. it looks the same from the outside but the there are no formation of vertice connection. i once saw a rearrange or meshing function by someone i cant remember that correct this. Kindly help me with this
Tried "remove doubles"?
Go to the edit mode, select the whole mesh press W and select remove doubles. 
If these vertices are making N-gon, try (Face split) an option in vertex dissolve.