Both VR Siddhartha college and PVP Siddhartha colleges offer good range of courses of engineering. However, both colleges require good ranks to seek an admission in these colleges. 68000 is quite high and the chances of getting a seat looks pretty slim and you may not get the branch you desire.

If you need better introspection, you can always click on the link that shall clarify your doubts regarding the prospects of getting admission in your preferred college:-

Hope, this link provides you better insight and outlook and where you stand with respect to your rank.