Mohammedan collected 13 points from 24 games, but were winless at home throughout the season.
Punjab FC will face Bengaluru FC next on February 1, while Jamshedpur FC will host FC Goa on February 2.
Siverio struck in the first half added time (45+4) and 84th minutes, while Ezequiel Vidal pulled one back for Punjab FC in the 46th minute.
Mohun Bagan Super Giant (MBSG) defeated Kerala Blasters 2-1 to advance to the Super Cup semifinals.
East Bengal maintained their newfound form with a 3-1 thumping of Punjab FC in their Indian Super League (ISL) match.
Mohun Bagan Super Giant defeated Punjab FC 3-0 to become the first team to qualify for the play-offs of the Indian Super League (ISL) this season.
A spot-kick from Noah Sadaoui (44th minute) was enough for Kerala Blasters FC to secure a win.
Never did Punjab FC embrace a defensive outlook despite their two-goal advantage, which is what perhaps helped them grab their third strike of the night.
Rodriguez's brace powers Mohun Bagan Super Giant past 10-man Punjab FC
Goals from Ezequiel Vidal and Filip Mrzljak helped Punjab FC defeat Hyderabad FC 2-0 and make it three wins in a row for the side in the Indian Super League in New Delhi on Wednesday.
East Bengal scored four second half goals to recorded a sensational come-from-behind victory, beating Punjab FC 4-2 in their Indian Super League (ISL) match at the Vivekananda Yuba Bharati Krirangan (VYBK) stadium in Kolkata on Tuesday.
Punjab FC picked up a sensational 3-2 come-from-behind victory over Chennaiyin FC in the Indian Super League, in New Delhi on Thursday.
Riding on goals from Nihal Sudeesh and Leon Augustine, Punjab FC beat Odisha FC 2-1 here on Friday to clinch their second successive win in the ongoing Indian Super League season.