Just because their corruption scandals aren't bandied about with greatest of vengeance doesn't mean BJP is any saint as far as corruption is concerned.
How could you not see so many corrupt guys in BJP, though due to completely sold out media, their corruption scandals hardly ever see the light of the day. Shah, Chauhan, Yeddi, Nishank, Laxman, Reddy bros, Roy, Sarma, Khandu, Gadkari, Rane.....The list goes on. Just because they've hopped over to BJP doesn't make them any less corrupt.
PS: Did I mention that Modi & Jaitley have presided over demonetization which is the biggest corruption scandal ever? Also, an independent commission has already raised doubts over GST regime being corruption free. Also, Modi has already bungled over INR 20K Crores from public exchequer during ONGC scam under his rein as Gujarat CM.
So there you go.