About Alibagh
Alibag is a coastal town and municipal council in Raigad district of Maharashtra, India. It is the headquarters of the Raigad district.
Alibag houses a magnetic observatory which was set up in 1904. It serves as one of the significant observatories forming part of a global network now run by Indian Institute of Geomagnetism. The observatory has two buildings; the first building has magnetometers that record changes occurring in the geomagnetic fields. The second building consists of precision recording instruments, which give data about geomagnetic storms caused by solar storms which is shared with other countries.
Source : Wikipedia