You sound so poor mamay,
Uttarapatha is the Northern part of our eternal
Bharat Varsha, southern part is called
Dakshinapatha. (Uttara=north, Dakshina=South).
Land between Indus and Radcliffe line is just a breakaway region of our
Bharata Varsha.
In reality those Arabs copied the knowledge from their so called jahil ancestors. One such example was the book named
SindHind translation of the mathematics of Brahmagupta(he was from Mewar) which Arabs took from Sindh and later became the foundation of Arabian Algebra of Al Khwarizmi, the Arabian Nights are partly copied from Panchatantra, Vikram-Betal and Jatak tales. The famous physician Ibn Sina learned the earlier medicine of Charaka and Sushruta.
I can see how Jahils people were before the arrival Muhammad Bin Qasim.