[2] A native of Kozhikode, Abhinav attended Kendriya Vidyalaya before graduating in Visual Communication from Dr G R Damodaran College of Science, Coimbatore.

[8] Aside from editing, he has cut the trailers for numerous films, notably Thira (2013), Oru Vadakkan Selfie (2015), Kunjiramayanam (2015), Jacobinte Swargarajyam (2016), Njandukalude Naattil Oridavela (2017) and Aravindante Athidhikal (2018).

The film starred his longtime collaborator Vineeth Sreenivasan, as the lead with a supporting cast of Suraj Venjaramoodu, Aarsha Chandini Baiju, Sudhi Koppa and Tanvi Ram.

[10] Princy Alexander of OnManorama wrote "Mukundan Unni is delightfully deceptive.The director and writer Abhinav Sunder Nayak and co-writer Vimal Gopalakrishnan have to be credited.

[14] In May 2024, he announced his next film called Mollywood Times, with a quirky tagline - 'A hate letter to cinema', produced by Aashiq Usman, set to release in 2025.