At the fag end of 2017–18 Indian Super League season Bengaluru FC extended contract of defender Rahul Bheke till May 2021.

[13] Bengaluru FC also released Spanish trio of Toni, Víctor Pérez Alonso, and Daniel Lucas Segovia at the end of the season.

[15] Bengaluru FC also released more inexperienced players at the end of season including Calvin Abhishek, Abhra Mondal, Joyner Lourenco, Zohmingliana Ralte, and Collin Abranches.

[20] On 11 June Bengaluru FC announced signing of defenders Gursimrat Singh Gill and Sairuat Kima for two seasons.

[24] After the early end to their AFC Cup campaign, Bengaluru FC signed Spanish center-back Albert Serrán on a one-year deal.

[26][27] After qualifying for 2018–19 Indian Super League playoffs, Bengaluru signed Spanish midfielder Álex Barrera on a short-term deal, owing to the injury of Erik Paartalu.

[34][35] After the exit in AFC Cup, Bengaluru FC played a friendly against MEG and won 7–0 with Sunil Chhetri and Miku scoring braces.

[40] Bengaluru FC started the game in a 4–2–3–1 with new signings Albert Serrán and Xisco Hernández making their ISL debut for the club.

[41] Playing against Jamshedpur FC on 7 October, Nishu Kumar got the lead for Bengaluru at the stroke of half time with a long-range effort.

The visitors took the lead in the 34th minute as Rahul Bheke's backheel flick off Xisco Hernandez' week shot at goal found the net.

Goa equalized when Coro's square pass found Brandon Fernandes in front of the goal and the forward's shot took a deflection on its way into the net.

Just as Goa felt they were back in the match, Sunil Chhetri restored the visitors' lead in the 77th minute from Udanta Singh's cross.

The deadlock was broken in the dying minutes when Udanta jumped onto a loose ball and launched a low shot from outside the box.

The ball took a deflection before hitting the frame of the goal and crossing the line and Bengaluru regained the top position on the table with 1–0 win.

[51] However, Mohun Bagan withdrew from the tournament and Bengaluru got a walkover and advanced to the quarter-finals and faced 2018–19 I-League champions Chennai City F.C.