He won the National Film Award for Best Audiography for his works on acclaimed feature films Kannathil Muthamittal (2002), directed by Mani Ratnam and Kadhalan (1994), directed by S.Shankar.
Some of the iconic films Lakshminarayanan has provided sound design for include Sarkar (2018), 24 (2016), Papanasam (2015), Kaththi (2014), Thuppakki (2012), Ko (2011), 13B (2009), Sivaji: The Boss (2007), Anniyan (2005), Kannathil Muthamittal (2002), Aayitha Ezhuthu (2004), Indian (1996), Bombay (1995) and Iruvar (1997) .
Lakshminarayanan started his career in the Tamil Nadu Film and Television Institute in 1979, and met his fellow audio professional Moorthy at Sujatha Dubbing Theatre, the first computerised dubbing theatre in South India.
By 1995, the pair had overseen audiography for over 200 films, working on a number of projects directed by K. Viswanath, Balu Mahendra, Mani Ratnam and K. Balachander.
For Aabavanan's Oomai Vizhigal (1986), the duo also completed work on the film's background score.