Sriharikota, Sep 9 : The Indian Space Research Organisation (ISRO) made history as it launched its 100th indigenous mission today.

The space agency''s old warhorse, the Polar Satellite Launch Vehicle (PSLV), blasted off into space at 9:51 a. m. with two foreign satellites from the spaceport of Sriharikota.

Prime Minister Dr. Manmohan Singh witnessed the launch of PSLV C-21, carrying French advanced remote sensing satellite 720 kg SPOT-6 and its 15 kg Japanese micro satellite PROITERES.

Congratulating ISRO on the launch, Dr. Singh said: "ISRO will scale greater heights, The ISRO community has been a source of inspiration to the country."

SPOT-6 is the biggest commercial lift so far since India forayed into the money-spinning commercial satellite launch services after 350kg Agile of Italy was put in orbit in 2007 by PSLV.

Twelve other foreign commercial satellites were less than 300 kg.

France''s five earlier SPOT satellites were launched by European Araine rocket.

SPOT-6, built by ASTRIUM SAS, a subsidiary of EADS, France, is an earth observation satellite, while PROITERES, developed by students and faculty of Osaka Institute of Technology, will study Kansai region of Japanese island of Honshu. (ANI)