I think Deepa will marry Prabha instead of Kanagu.
Prabha is shown as a rich guy who will most probably help out her family in these hard times. Of course, this may lead to small soft corners and attraction and eventually love.
I feel that Kanagu may never express his love and he may help Deepa and Prabha get together.
But Deepa will not get married for a long time, as she will finish her studies and make sure her sisters are settled in life.
It's sort of unpredictable but I just feel bad for Kanagu. Personally I like Kanagu's soft helping character and I did not like the way Prabha acted at the hospital.
We'll see what happens!!