Absolutely not.
Did you forget the Muzaffarnagar riots? Even after that BJP won. Riots, bombastic speeches have no effect on Delhi. Delhiwalas voted Kejri because he promised them a lot of sops. In any case they are the first class citizens of this country. Delhi voted for Kejri because it has been promised doleouts, free water, free wifi, free electricity, at our expense, of course. Now just watch the rise of open and brazen anti Hindu elements. Mark my words.
The Church also did a sustained campaign against Hindus for the last 6 months. Not surprising, considering that Delhi has been one of the most 'secular' Indian cities since Independence.
BJP's run is finished. Irrespective of what he does, he will lose the next elections. the Secular Coalition has come together. There is nothing BJP can do.