<p><span><span>The BS Yediyurappa-led BJP has won 12 out of the 15 constituencies that faced bye-elections.</span></span></p>.<p><span><span>Bharath Joshi explains the BJP’s success as well as what went wrong for the Congress and the JD(S)</span></span></p>.<div><p><strong>Deccan Herald is on WhatsApp Channels </strong>| <a href="https://www.deccanherald.com/specials/deccan-herald-is-now-on-whatsapp-heres-how-you-can-join-2698271">Join now for Breaking News & Editor's Picks</a></p></div>