As a dis-Ability rights activist, Perera has promoted the concept of establishing a society that does not marginalise or discriminate against people on the basis of limited mobility, either for short time, or long time or life time in attending to normal day-to-day life – the principal problem in this context.
He is a fervent advocate of built environments and facilities that are a joy rather than a trial to use by everyone. He has constantly used the weapon of persuasion to convince people that the cumulative result of even small changes could be substantial.
Perera has also pioneered the campaign in Sri Lanka for accessible tourism, recognising it as an overlooked growth market and new profit resource for Sri Lanka.
Perera was also instrumental in proposing to the Sri Lanka Standards Institution (SLSI) and paving the way in persuading them to establish the first Sri Lanka standard for design in building construction SLS ISO TR 9527:2006 in 2007, a fact which Dr. A. R. L. Wijesekera, the then Chairman SLSI, recognised as an achievement of national importance.