Chennai, July 14: The 20-hour countdown for the July 15 early morning lift-off of India''s heavy rocket nicknamed ''Bahubali'' carrying the Chandrayaan-2 spacecraft is progressing smoothly, Indian space agency officials said.

"The countdown began at 6.51 a.m. on Sunday," K. Sivan, Chairman, Indian Space Research Organisation (ISRO), told.

Standing at about 44 metre tall, the 640-tonne rocket Geosynchronous Satellite Launch Vehicle-Mark III (GSLV-Mk III) is nicknamed ''Bahubali''. And just like the hero in the hit film by the same name lifted a heavy ''lingam'', the rocket will carry the 3.8 tonne Chandrayaan-2 spacecraft.

About 16 minutes into its flight, the Rs 375 crore GSLV-Mk III rocket is expected to sling the Rs 603 crore Chandrayaan-2 into an Earth parking 170x40,400 km orbit.

From there, it will be a long journey to the moon for the Chandrayaan-2 spacecraft carrying a lander called Vikram and a rover known as Pragyan.

The distance between the Earth and the moon is about 3.844 lakh km.

On September 6, the lander Vikram is expected to make a soft landing on the moon and then the rover Pragyan will roll out to carry out in-situ experiments.

During the countdown, the rocket and the spacecraft''s systems will undergo checks and fuel will be filled to power the rocket engines.

According to ISRO, filling of the liquid fuel in the Liquid Core Stage has been completed on Sunday.

GSLV-Mk III is designed to carry 4 tonne class of satellites into Geosynchronous Transfer Orbit (GTO) or about 10 tonne to Low Earth Orbit (LEO), which is about twice the capability of GSLV Mk II.

The vehicle has two solid strap-on motors, a core liquid booster and a cryogenic upper stage.

To date, ISRO has sent up three GSLV-Mk III rockets.

The first one was on December 18, 2014, carrying the Crew Module Atmospheric Reentry Experiment. The second and third GSLV-Mk III went up on February 5, 2017 and November 14, 2018, carrying communication satellites GSAT-19 and GSAT-29, respectively.

Interestingly, GSLV-Mk III will also be used for India''s manned space mission slated in 2022.

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New Delhi (PTI): India and Russia on Friday firmed up a five-year plan to bolster economic and trade partnership in the face of Washington's punitive tariff and sanctions regime even as Prime Minister Narendra Modi conveyed to President Vladimir Putin that the war in Ukraine must be brought to an end through dialogue.

Following their summit talks, Modi and Putin unitedly demonstrated their keenness to impart a fresh momentum to the trajectory of the over eight-decades-old partnership between the two nations.

Besides finalising the 2030 economic programme, the two sides signed several agreements to expand cooperation in a number of sectors including health, mobility and people-to-people exchange.

"Over the past eight decades, the world has witnessed numerous ups and downs. Humanity has had to pass through many challenges and crises. And amidst all this, the India-Russia friendship has remained steadfast like a pole star," Modi said in his media statement.

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The prime minister, referring to the economic roadmap, said taking the India-Russia economic partnership to new heights is now a common priority for both sides. Modi also said that India and Russia are working towards early conclusion of a free trade agreement with Eurasian Economic Union.

The Ukraine conflict also figured prominently in the talks with Modi saying that India has advocated for peace in that country.

"We welcome all efforts being made for a peaceful and lasting resolution of this matter. India has always been ready to contribute its part and will remain so in the future," he said.

On threat of terrorism, Modi said India and Russia have long been standing shoulder-to-shoulder in the fight against the menace.

"Whether it is the terrorist attack in Pahalgam or the cowardly assault on the Crocus City Hall -” the root of all these incidents is the same," he said.

"India's unwavering belief is that terrorism is a direct assault on the values of humanity and that global unity against it is our greatest strength," he added.

Modi said India-Russia cooperation in the critical minerals sector is crucial for ensuring secure and diversified supply chains across the entire world.

ALSO READ: Russian President Putin says India, Russia collaboration not directed against anyone

In his remarks, Putin said the two sides resolved to prioritise cooperation in areas of security, economy, trade and culture.

We are looking at increasing annual bilateral trade volume to USD 100 billion, he said.

Putin said Russia is also looking at expanding cooperation in the energy sector with New Delhi, adding his country is ready for uninterrupted shipments of fuel to India.

We could also talk about cooperation in construction of small modular nuclear reactors and floating nuclear power plants, he said.

Russia, India and other like-minded nations are working towards a just and multipolar world.