Ahmedabad: ISRO Chairman S Somnath on Wednesday said the Indian Space Research Organization will continue its Chandrayaan series of lunar probes until one of the country's astronauts lands on the Moon.

Last August, the premier space agency's Chandrayaan-3 spacecraft made a soft landing on the south pole of the lunar surface, making India the first country to achieve the feat.

“Chandrayaan 3 has performed very well. The data has been collected and scientific publication has just begun. Now, we want to continue the Chandrayaan series until an Indian lands on the Moon.Before that, we have to master human technologies, such as getting there and back. We are trying to complete the next mission,” he told reporters on the sidelines of an event.

Somnath had attended an event organized by the Astronautical Society of India in Ahmedabad as the chief guest.

Regarding India's first manned space flight mission, Gaganyaan, Somnath said ISRO will conduct an unmanned mission, a test vehicle flight mission and an airdrop test this year.

ISRO Chairman said, “The airdrop test will take place on April 24.After that there will be two more unmanned missions next year and then if all goes well, the manned mission will happen by the end of next year."

The Gaganyaan project envisages the demonstration of human spaceflight capability by launching a crew of 3 members into a 400 km orbit for a 3-DA mission and landing in Indian waters and returning them safely to Earth.

On ISRO's newly developed carbon-carbon (Si-Si) nozzle for rocket engines, he said it will improve payload capacity as it is lighter and will be installed in the Polar Satellite Launch Vehicle or PSLV.

“This is technology we have wanted to develop for the last several years. Now we have mastered it, built it and then tested it in the engine.This is a carbon-carbon nozzle. This gives us an advantage in weight compared to metal and it also allows us to work at higher temperatures. Reducing weight improves engine efficiency and payload capacity. We are going to put it in the PSLV,” he said.

In a release on April 16, ISRO announced that it has achieved a significant rocket engine technology with the development of lightweight Si-Si nozzles for rocket engines, thereby increasing payload capacity.The innovation, accomplished by the space agency's Vikram Sarabhai Space Center, promises to increase critical parameters of the rocket engine, including thrust level, specific impulse and thrust-to-weight ratio, thereby boosting the payload capacity of launch vehicles. Yes, it said.