Dr Neeraj Ji need help regarding Arudha lagna and Upapada lagna

[Rache]

Dr.Neeraj Ji,
There's a confusion regarding calculation of Arudha lagna and Upapada lagna and actually different softwares are showing different Arudha and Upapada lagna..
In J.hora-
Arudha same as lagna-Pisces
Upapada-Virgo,when using rahu-ketu
Otherwise Sagittarius.
In Parasharas light
Arudha again - Pisces
Upapada is now cancer.
In Horoscope explorer pro
Upapada- pisces
Arudha- Sagittarius.
Which one is accurate??
As different softwares also showing same Arudha as of lagna,how is that possible..
Kindly let me know which one is right??