Deletion of Ritwik Mallik (2nd nomination)

Comment: I am Unsure about notability of this young author. There are claims that this person wrote two best sellers - but I cannot find evidence of that. Also, if his books are Amazon Best Sellers, they will not automatically pass .  I also have not found any in depth RS of this person. I think he fails  and . It seems like 
Stance: comment
Cited policy: Wikipedia:Notability (WP:NBOOK||WP:AUTHOR||WP:GNG||WP:PROMO)