In 1961, Shetty formed the R N Shetty & Company, a civil engineering and construction company. The company took up public infrastructure buildings including bridges on the
Honnavar–
Bangalore road. In 1966, he shifted base from his native Uttara Kannada district to
Hubli, in the northern Karnataka. He also built tunnels for the
Konkan Railway project and
canals for the
Upper Krishna Project. In 1987, he set up Murudeshwar Ceramics to manufacture glazed ceramic tiles with manufacturing facilities in Hubli and
Karaikal in
Puducherry. In 1993, Shetty entered the power sector, setting up Murudeshwar Power Corporation which built a mini
hydel power project in 1999, with a commissioned capacity of 11.6 MW at
Narayanpur Left Bank Canal in
Bijapur district. His company RNS Motors established automobile showrooms for
Maruti Udyog in Hubli in 1995 and in Bangalore in 1998. ==Philanthropy==