I think you can try an option between Rourkela-Chennai. That time you can also get the benefit of 13351-Dhn-Allp express. Its quite amazing to note that the tatkal quota from Rourkela is more than tatkal quota from Tata & Dhanbad since it appears to get the benefit of both trains being attached there. Its a rare case where an intermediate station gets more quota than the starting station!!!