When Varesh and Tithi lord are same or together in relation in the chart, Panchanga dosha occurs. Because there is the mixing of Agni and Jala tattva. Only one, either health or relationship will be better, both will not be good.
When Karanesh and Nakshatra lord are same, or together in relation in the chart. There is an unhealthy mixing of Prithvi and Vayu tattva. It disrupts career, education, wealth, asset, peace of mind. It gives huge negative transformations and disruption of personality mainly during their dasha’s.
Sankranti dosha, if varesha coincides with surya sankranti then the things related to the houses controlled by varesh in the chart and things related to to the planets sitting in the houses will be seriously affected or destroyed.