BJP needs to urgently find ways and means to counter AAP attacks as more such attacks will come in future and at a increased scale. It would be always better not to react at AAP's provocations and let the administration take care of any illegal acts. Matured leaders and parties always remain unprovoked. During Kejriwal's UP tour despite provocations from AAP, none had reacted.
Though Election Commissioner took a note of AAP's attack on BJP's head quarter at Delhi, but not likely to take any stern action because it has no such powers. This had been earlier proved in the case of Salman Khurshid and Varun Gandhi case whore both had given very provocative and unacceptable speeches in previous elections. It can warn only and at best book a case.
Many experts are of opinion that this general election would be marred with violence particularly confronting each other on streets. Many blame the degrading parliamentary behaviors in last Lok Sabha. If one can consider pepper spray and brandishing of knife in the House in addition to the common hooliganism and obstructions, he would agree that whatever AAP is doing is less than the exhibited parliamentary behaviors? One of my friends told that AAP is not doing any unparliamentary act established as of now!
However, I think the onus on healthy democracy is always on public to choose their representatives wisely. At the same time bigger parties must demonstrate their credibility while contesting in healthier ways. Else what is the difference between them and anarchic parties?