Sanskrit commentary on BPHS

[Abhishek Mehta]

Dear Members,

I am looking for a sanskrit commentary on Brihat Parashara Hora Samhita (BPHS). If anyone knows a link to that, please do let me know.

Additionally, I would also like to know sanskrit commentaries of other Sanskrit texts where I may learn jyotisha more easily. BPHS writing style is highly nonlinear for some reason. Terminologies used in one chapter without definition are somehow only defined after 20-30 chapters. 

Any other assistance or comment in this regard will be highly appreciated.

Yours sincerely

Abhishek Kumar Mehta