Mr. Jawahar Lal Malhotra, a passionate amateur astronomer, painstakingly created detailed drawings of all constellation figures while in college. He preserved these drawings for over 50 years and then donated them to the Nehru Planetarium, Delhi. They have been kept on permanent display ever since, as a source of interest and inspiration for budding amateur astronomers.
Hercules
Gemini
Sagittarius
Orion
Ursa Major
Ursa Minor
Ophiuchus and Serpens
Cancer
Virgo
Lyra and Aquila
Canis Minor and Canis Major
Such detailed diagrams done with precision.