  A Solar Low-energy X-ray Spectrometer (SoLEXS), a high spectral resolution
(\leq 250 eV at 5.9 keV) instrument with soft X-ray energy coverage (\leq 1.5
keV), is being proposed as an additional payload on-board Aditya-1. The
motivation behind this is to complement the visible emission line space solar
coronagraph, the main payload on Aditya-1. The science goals in which SoLEXS
data will compliment the main payload are: (i) Understanding of DC heating
mechanism, (ii) Studies on the Flare-CME relations from the same platform,
(iii) Independent and accurate estimates of temperature and emission measure at
the flaring sites, and (iv) Coronal abundance studies and its variations during
flares. Apart from these four major science goals, this instrument in principle
can provide a flare trigger to the main payload and help in optimizing the
on-board memory storage.
