Kerala (21 points) missed out to Jharkhand (23) for the second qualifying spot behind group-toppers Karnataka (35).
Pondicherry ended the third day on 34/1 in their second innings, an overall lead of 119.
However, the draw was enough for Karnataka to seal their place in the quarterfinals.
Sachin's 10th first-class hundred lifted Kerala to 224/6 at stumps on the opening day against Karnataka.
Sachin, who notched up his ninth first-class ton, also went past the 4,000-run mark during the course of the day.
Facing a daunting target of 395 for a win, Kerala finished their second innings at 299 for 8 wickets.
Rajasthan ended the penultimate day on 278/5, an overall lead of 309.
Kerala were bundled out for 183 in their chase of 260 as Andhra emerged comfortable winners by 76 runs.
Sachin has been named captain in the absence of Sanju Samson who has been picked in the Indian team for the New Zealand tour.
Sheldon Jackson's 44-ball 64 powered Saurashtra to 183/6 after Chetehswar Pujara opted to bat.