Following the 2022–23 season, the Blasters parted ways with their long-time assistant coach Ishfaq Ahmed,[2] captain Jessel Carneiro,[3] and their then-most-capped player, Sahal Abdul Samad.

[4] The club also made their most expensive signing its history by paying FC Goa a reported fee of ₹1.45 crores for the transfer of Aibanbha Dohling on a three-year contract.

[22][23] This particular season was remarked by the Blasters' walk-off from the league's knockout stage match against their arch-rivals Bengaluru FC following their disagreement on the free-kick goal scored by Sunil Chhetri during the extra-time.

[35][36] On 16 May, the Blasters announced the signing of the Australian winger Jaushua Sotirio on a two-year deal after reaching an agreement with Newcastle Jets FC for an undisclosed transfer fee.

[39][40] On 19 May, AIFF announced the final Indian squad for the 2023 Intercontinental Cup and 2023 SAFF Championship, which consisted of the Blasters' players; Pritam Kotal (who was signed after the tournament), Jeakson Singh, and then Sahal Abdul Samad (whom would later leave the club during the pre-season).

[47] On 31 May, the Blasters announced the departures of Víctor Mongil, Apostolos Giannou, Ivan Kalyuzhnyi, Harmanjot Khabra and Muheet Shabir from the club as their contracts ended on the same day.

[60][61] On 24 June, it was announced that the Blasters have taken the appeal of the AIFF's sanctions on them as a result of their walk-off in the last season's knockout stage match against Bengaluru to the Court of Arbitration for Sport based in Switzerland.

[62][63] On 26 June, the Blasters announced the signing of the Indian winger Bikash Singh Sagolsem till 2025 on a two-year contract with an option to extend, and was subsequently sent on loan to Mohammedan SC for the upcoming season.

[83][84] On 20 July, the Blasters announced the departure of their Indian central midfielder Ayush Adhikari after reaching an agreement with an unknown club for an undisclosed transfer fee.

Later, a single scored by both Nihal Sudeesh and Muhammad Ajsal sealed a five-nil victory for the Blasters at full time for the match held in their training facility in Panampilly Nagar.

[99] Gokulam took the lead through Aminou Bouba but the Blasters retaliated through their trial player Justine Emmanuel who drew level with a goal resulted from a corner kick in the 35th minute.

[105] On 17 August, the Blasters announced the departure of the Indian forward Muhammad Ajsal to I-League side Inter Kashi FC on a season-long loan deal.

[110] Hormipam Ruivah was shown a second-yellow and sent-off from the pitch due to a foul on the Bengaluru's forward Monirul Molla in the 86th minute,[111] but the Blasters avoided a defeat, as the Southern Derby ended in a thrilling 2–2 draw, which resulted in their elimination from the tournament.

[117] However, the spotlight remained on Bidyashagar, as he completed his hat-trick with two more goals in the 61st and 82nd minutes respectively to secure the three-points for the Blasters in what was a brief moment of success for the club in an otherwise disappointing tournament.

[125][126] On 31 August, the Blasters announced the signing of the Indian midfielder Freddy Lallawmawma from Punjab FC on a three-year contract till 2026 for an undisclosed transfer fee.

[127][128] On 1 September, the Blasters announced the loan departures of Bijoy Varghese to Inter Kashi, Givson Singh to Odisha FC and Justine Emmanuel and Muhammed Saheef going to Gokulam Kerala respectively.

[181][182] On 18 October, the Blasters announced that their Indian defender Aibanbha Dohling has undergone a surgery following his injury during the match against Mumbai City FC.

[191] On 3 November, the Blasters announced that their Indian midfielder Jeakson Singh has undergone a shoulder surgery following an injury sustained by the player during the match against Mumbai City FC on 8 October.

[198] Even though East Bengal pulled one back through another penalty by Cleiton Silva in the end of the additional time, it could not stop them from losing as the Blasters won their fourth match of the season.

[204] Both the sides had their fare share of chances in the second-half but the Blasters were able to hold on to their lead as they won their fifth match of the season to move back to the top of the table.

Chennaiyin were quick to react as they won a penalty just two minutes after the Blasters' drew level as the ex-Blasters' player Jordan Murray did no mistake and retained the lead for the visitors.

[211] On 11 December, the AIFF-DC suspended the Blasters' coach Ivan Vukomanović for one-match and imposed a fine of ₹50,000 following his comments against the referees in a post-match press-conference on 29 November after the match against Chennaiyin FC.

[212][213] On 13 December, the media outlets reported that the Blasters' captain Adrián Luna has been injured on his knee during the training session ahead of the match against Punjab FC and would be out for an indefinite amount of time,[214] and would be subjected to a surgery in Mumbai, potentially ruling him out for the rest of the season.

[230] The Blasters dominated the first-half,[231] and was able to retain their one goal lead till the last minute of the second-half, as they won their eighth match of the season, and also registered their first win over Mohun Bagan and Juan Ferrando in their history.

[251] On 27 January, the Blasters released a statement on the injury sustained by their striker Kwame Peprah during the match against Jamshedpur in the Super Cup, which would rule him out for the rest of the season.

[252][253] On 29 January, the Blasters announced that they have recalled their Nigerian forward Justine Emmanuel from his loan spell at I-League club Gokulam Kerala FC after the long-term injury sustained by their Ghanaian striker Kwame Peprah.

[263] On 20 February, the Blasters provided a statement on the shoulder injury sustained by their goalkeeper Sachin Suresh during the match against Chennaiyin, and ruled him out for a significant duration.

[295] After a goal-less first-half, NorthEast United would score two late goals in 84th minute and during injury time through Néstor Albiach and Jithin M. S. respectively as the Blasters lost their tenth match of the season.

[373] After the club's elimination from the 2023 Durand Cup, the Blasters announced that they would playing a friendly match against the newly promoted ISL side Punjab FC on 27 August, ahead of their UAE tour.

Durand Cup fixtures were announced in early July 2023 with the Blasters facing Gokulam Kerala, a club from their own state, and their rivals Bengaluru and the Indian Air Force team respectively.