In 2008, Parameswaran received a Guinness World Record for creating the largest easel painting. It is a portrait of former chief minister of Kerala Elamkulam Namboodiripad, measuring 25′ height and 50′ width, and is held by a 56.5′ high and 31′ wide easel on National Highway 47 near Neyyattinkara, Thiruvananthapuram, Kerala.[2][3] Two years later, it was included in the Limca Book of Records.[4]
In 2017, Parameswaran built “The Largest Devil’s Knot (Edakoodam)”, a type of Burr puzzle. This is the second successful attempt at setting this record. ‘Edakoodam’ is a word familiar to most Malayalis, meaning ‘a puzzle[5] which is difficult to solve’. However, not many people know of this curious toy which is somewhat similar to the Rubik’s cube. Made up of six wooden blocks, the ‘edakoodam’, once dismantled, can be assembled to its original position only with proper mathematical skills.
In an arts contest organised by Tamil magazine Ananda Vikatan, Parameswaran was first shortlisted within the top seventy-five artists and later chosen first among them by public vote. In 2010, he won the Bikhuram National Award for his painting of Mahatma Gandhi and the same year, for a painting of Fidel Castro, he won an online art contest organised by the ArtSlant International.[6][1]
In 2015, his works were featured at Elegance Club, Kuala Lumpur, Malaysia, and included a portrait of Adhiletchumy Natrajan, titled Bliss. Bliss had previously been featured at the Vienna International Exhibition (2013).[7][8] One of his paintings, called Bhayanakam, was featured at Lalit Kala Akademi, Chennai, and sold, which he donated to a relief fund for people affected by Cyclone Thane, which struck the Indian subcontinent in 2011.[4]
Parameswaran has made portraits of Mother Teresa, Abdul Kalam, Richard Branson, and Najib Razak, among many others