I know Krishna Dvaipayana (present Veda Vyasa) wrote Puranas, Mahabharata and also Valmiki (24th Vyasa) wrote Ramayana. Like this, I want to know about other scriptures created by other previous Vyasas.

Gandabherunda was a form of Narasimha. I want to learn more about him, can't find any info on internet apart from Wikipedia.

Bathing in Ganga is considered as extremely auspicious. I want to know What is the best time to take Ganga-Snan ( bath in the Ganga river) ?

What is the difference between Bhaava Lagna, Hora lagna, and Ghati lagna? I am confused about the concepts of Bhaava Lagna, Hora lagna, and Ghati lagna, and I am not sure what their respective purposes are?

What is meaning of all verses from this chapter of Harivamsha?

Should we pray to gods only in Sanskrit language or using proper mantras only ? Should using other language be avoided ?

Is it true that Brahma denotes Satva Guna Vishnu denotes Rajas Guna Shiva denotes Tamas Guna ?

What is the meaning of Sachidanand ? What does this word "Sachidanand means ? I think the word can be broken into - Sat + Chit + Anand ? The word is frequently used to address god. But what does this word actually mean ? I am not able to understand it.