ISRO's primary mission is to promote space research and technology in India, with a focus on developing indigenous capabilities in space science, satellite technology, and space applications.

Aryabhata was the first satellite to be launched into space by ISRO. It was named after the renowned Indian astronomer and mathematician Aryabhata and was launched on April 19, 1975.

The primary objective of the Chandrayaan-1 mission was to study the lunar surface, including its composition, structure, and mineralogy. The mission also aimed to search for water and other resources on the Moon.

INSAT-3D is known as the 'Eye in the Sky' due to its advanced capabilities in weather forecasting, disaster management, and environmental monitoring. It provides real-time data on weather conditions, cyclones, and other natural disasters, enabling timely warnings and response.

Mangalyaan, also known as the Mars Orbiter Mission, was ISRO's first interplanetary mission. It was launched in 2013 and successfully entered Mars' orbit in 2014, making India the first Asian country to reach Mars.

Gaganyaan is ISRO's ambitious human spaceflight program, which aims to send a three-member crew to space by 2023. The mission will demonstrate India's capability to conduct human space missions and pave the way for future space exploration endeavors.

The Aditya-L1 mission is designed to study the Sun's corona, which is the outermost layer of the Sun's atmosphere. The mission will provide valuable insights into the Sun's activity, including solar flares and coronal mass ejections, which can impact Earth's space weather and communication systems.

Oceansat-2 is a dedicated satellite for studying the Earth's oceans. It provides data on ocean color, sea surface temperature, and sea surface height, which are crucial for understanding ocean dynamics, climate change, and marine ecosystems.

IRNSS stands for Indian Regional Navigation Satellite System. It is India's own satellite navigation system, providing accurate positioning, navigation, and timing services to users in India and the surrounding region.

NISAR stands for NASA-ISRO Synthetic Aperture Radar. It is a joint mission between ISRO and NASA to study the Earth's atmosphere, climate, and ecosystems. The mission will provide valuable data on forest biomass, glacier movement, and natural disasters.

The primary objective of the Chandrayaan-2 mission was to land a rover, named Vikram, on the Moon. The mission aimed to study the lunar surface, search for water and other resources, and demonstrate India's capability to conduct soft landings on extraterrestrial bodies.

Cartosat-2 is known for its high-resolution imaging capabilities. It provides detailed images of the Earth's surface, which are used for various applications such as urban planning, land use mapping, and disaster management.

Aditya-L1 is ISRO's upcoming mission to study the Sun. It will be placed in a halo orbit around the Sun's L1 Lagrange point, providing a continuous view of the Sun's corona and studying its dynamics and activity.

Resourcesat-2 is a satellite dedicated to studying the Earth's resources. It provides data on land use, forest cover, water resources, and mineral deposits, which are crucial for sustainable development and resource management.

The primary objective of the Gaganyaan mission is to send a three-member crew to space by 2023. The mission will demonstrate India's capability to conduct human space missions and pave the way for future space exploration endeavors.