OM SRI SAI RAM
i also beleive that there will be no difference of reading any story for the fast, the main thing is that we should have full faith and love for our baba.
Dear abhinav ji, Sai Ram
You have said this very correctly.
Baba needs love, devotion coupled with unshaken faith and Patience.
However, when it comes to the vrat kathas, to my knowledge,
1. the story of Kokilaben is that followed for the Nav Guruvar Vrat where, the devotees take a vow to follow vrat for nine Thursdays continuously.
2. The vrat katha you have given in pdf attachment is a one time pooja which can be done on any thursday with or without taking a vow. It can be done for life time also.
3. The other attachment you have given did not open for me. So, I am unable to answer to that.
4. Apart from this, Parayan of SSC such as,
a. reading daily one chapter
b. doing saptah - reading the number of chapters as given in SSC
c. taking a vow of reading SSC within a day
d. doing 3 , 5, 11 saptahs etc.,
are also being followed by various devotees.
5. Further, we are also blessed with 40 days sugar candy pooja as told by our dearest didi Subha ji.
Whatever be the pooja pattern, Baba's way of getting any pooja done by his devotees is also unique.
I have given the details with my lil knowledge. I hope our Sai Bandhus will add more details to make your job easier.
Baba bless U always
Baba be with us all
JAI SAI RAM