Sri Lanka would want to make maximum runs in this innings itself. If India are not able to take the remaining 6 wickets, Sri Lanka will bat for atleast another 60 overs.
So India has to bat for 100 overs to save this Test Match.
Although not 60, but Sri Lanka still batted for almost 40 overs.
Equation still remains same for India - Bat for 100 overs to save this match. Might lose 2-3 wickets before wiping off the 122 runs defict.
Pitch still didn't look helpful for spinners so hopefully Rangana threat will be taken care of.