Please have a look on the following publication which showed relationship between nitrogen fertilizer and chlorophyll content in soilless culture.

please find some of the related articles below

Dear Sivagnanam,

You may find the following articles related to your question. Please check out the chlorophyll content after nitrogen fertilization of fish pond water. 

Cordially,

Article Nitrogen Fertilization of Golden Shiner Ponds

Article A Reassessment of Nitrogen Fertilization for Sunfish Ponds

Article A Sodium-Nitrate-Based, Water-Soluble, Granular Fertilizer f...

Hello  Sivagnanam

Does your question refer to the biochemical mechanisms by which chlorophyll is made and how the supply of N determines the process? Or do you think of  the more general relation between N supply and chlorophyll content (mol chlorophyll per unit leaf area) ?

The first is dealt with in most good plant biochemistry text books, but basically requires that all the enzymes needed for leaf cell and chloroplast development are made so a very limited supply of N will inhibit the whole process.  Note that chlorophyll b increases more than chlorophyll a as the N supply increases.  However, plants growing with little N develop fewer, smaller leaves, but maintain the chlorophyll so that growth and yield may be more decreased than chlorophyll content per area of leaf. The general relation between chl/unit area leaf and N supply is a curve which increases strongly as  the N supply get larger.  and  then levels off.

Look at Lawlor, DW on Research Gate for relevant publications e.g. Lawlor, Lamaire and Gastal  and Lawlor,  Konturri and Young. If you cannot find them I will send later.

Does that help? Regards

David Lawlor