However, due to financial constraints, he couldn't make it and instead moved to Mumbai and joined music composer Raju Singh and went on to be his apprentice for the next few years.

[10] In 2015 Amaal Malik[11] overheard Meghdeep's work at YRF Studios, Mumbai and offered him to collaborate on the song "Main Hoon Hero Tera".

In the next few years Meghdeep was commissioned by various composers and artists including Vishal–Shekhar, Shankar–Ehsaan–Loy, Pritam, Salim–Sulaiman, Amit Trivedi, Clinton Cerejo, Mikey McCleary, A Sivamani, Stephen Devassy, Arjun Janya etc.

[5] On 8 August 2019, Amaal Mallik & Meghdeep Bose became the second Indian composer-arranger to perform with the Melbourne Symphony Orchestra.

In 2018, AR Rahman commissioned him with two songs to arrange in an orchestral format, which were later performed by the Grand Philharmonic Orchestra from London".

[23][24][25] - Lut Put - Saahiba – Hearthrob – Kudmayi (Film Version) – Maine Pi Rakhi Hai – O Sahiba – Mind Your Business – Ae Dila Marjaniya – Parinda – Main Hoon Na Tere Saath – Aadhe (Additional Strings Arrangement) – Title Song – Balma Bhagoda[32] – Aetthe Aa (both Versions), – Aya Na tu – Hindustani – Fakeera – Jaan Nisaar – Dooba Dooba – Beautiful – Maya – Janmashtami – Raat Yun Dil Mein – Daata Tu – Kaun Tujhe – Jab Tak – Main Hoon Hero Tera (Armaan Mallik Version) – Main Hoon Hero Tera (Sad Version) – Additional Music – Additional Composition Craig Pruess Song "Bebaqiyaan" Nashra (Lyrics) Nikhita Gandhi (Singer) Yashaswini Dayama (Singer) - Gori Again - Nazron Se Dhokha - Sochna Kya?