The website of Indian Space Research Organisation's commercial arm Antrix Corporation Limited was reportedly hacked on Sunday and the space agency said efforts are on to set it right.
This would be the 44th flight of the PSLV and the third launch by ISRO this year.
Antrix, ISRO's commercial arm, is eyeing 10% of the $357 billion global market.
Heralding a new era, India on Friday night launched its heaviest commercial space mission ever with its polar rocket successfully putting five British satellites into the intended orbit after a flawless takeoff.
The primary goal of HysIS, whose mission life is five years, is to study the earth's surface in visible near infrared and shortwave infrared regions of the electromagnetic spectrum.
Other than the Cartosat-2 series satellite, the PSLV is carrying 29 nano satellites from 14 countries - Austria, Belgium, Chile, Czech Republic, Finland, France, Germany, Italy, Japan, Latvia, Lithuania, Slovakia, the United Kingdom and the United States of America besides a nano satellite from India.
Besides Nair, others named in the charge sheet include the then K R Sridhar Murthy, Ramachandra Vishwanathan and M G Chandrasekhar.