According to 1st part script "Bahubali - The Begining" at climax they showed that Kattapa Killed the Bahubali and every one want to know reason. The guess of this is that "Maharani Sivagami (Ramaya Krishnan)" offers the Bahubali to become a king and for "Bhallala Deva" to become commander in cheif. Also Bahubali married with "Maharani Devasena" which is also Liked by "Bhallala Deva", this create jealous in "Bhallala Deva" as well as in "Bijjaladeva".
Therefore "Bijjaladeva" instigate the "Bhallala Deva" about their unsuccessful life, So they planned and generate such type of environment by politics and instigate Maharani Sivagami (Ramaya Krishnan) about "Bahubali" and show some false proof of betrayed of Bahubali and necessitate and forced Maharani Devasena (Anushka Shetty) to order Kattappa to Kill Bahubali.
After Bahubali's death, "Bhallala Deva" and Bijjaladeva planned to kill Bahubali's son and Maharani Sivagami (Ramaya Krishnan) to clear their barriers in future.
Therefore "Bijjaladeva" instigate the "Bhallala Deva" about their unsuccessful life, So they planned and generate such type of environment by politics and instigate Maharani Sivagami (Ramaya Krishnan) about "Bahubali" and show some false proof of betrayed of Bahubali and necessitate and forced Maharani Devasena (Anushka Shetty) to order Kattappa to Kill Bahubali.
After Bahubali's death, "Bhallala Deva" and Bijjaladeva planned to kill Bahubali's son and Maharani Sivagami (Ramaya Krishnan) to clear their barriers in future.
