Leaves continue to lose chlorophyll

Usually moong or bean seeds are considered to be the easiest to grow among all plants, germinating quickly and growing very fast in all kinds of soils. However due to unspecified reasons , in December 2016, the leaves continue to lose chlorophyll very rapidly after a few days . The chlorophyll in the leaves in gradually fading away and the plants are also not growing .
Adding different fertilizers is also not helping to any great extent. This problem is faced for plants grown in only a few pots, other plants are growing fairly well. It appears that there is a problem with the soil in the pots ,.If anyone else is facing the same problem or has found a solution to the problem, please send an email to info@textads.in