Ferromagnetic semiconductive materials have much attention as potential candidates for spintronic devices due to the integration of electron spin and electron charge in the same material. There are some reports where ferromagnetism and semiconductive behaviour coexist. To improve the poor reproducibility and low Curie temperature an alternative method is so-called diluted magnetic semiconductors (DMSs) was introduced where dopant magnetic ions lead to coexistence of magnetism and semiconductor. DMMs are based on non-magnetic semiconductors and magnetic phenomena introduced by alloying optimum size and amount of magnetic materials. Despite the success of these materials, their all-inorganic compositions greatly limit their directed synthesis and chemical tunability. Another approach could be inorganic-organic hybrid materials where synergistic behaviour can lead to desirable properties for spintronic material. It was shown that the optical band gap of these inorganic-organic hybrid materials is mainly contributed by organic ligand. The contribution of metal ions for magnetic interactions and low band gap from the organic ligand can lead to new material for the spintronic application. Several attempts have done by design new ligands and synthesizing hybrid structure to achieve the conductivity and ferromagnetism for spintronic material. Here we have synthesized a new [Ni₃(BTB)₂(BPE)₄(H₂O)₂] 4 DMF 2 H₂O, ( where, BTB = 1,3,5-tris (4-carboxyphenyl) benzene, BPE = 1,2-bis (4-pyridyl) ethane) three-dimensional structure by using highly conjugated ligands and nickel ions. This is a low band gap material and exhibits long-range ferromagnetism. Both experimental and theoretical optical band gap values exhibit its semiconductor characteristics. The Ni atoms are linked with the BTB and BPE ligands to form the four-membered rings which are linked to each other to form the three-dimensional structure. Structural analysis also revealed that when Ni atoms only connected with BTB ligand it forms kagome type structure. Magnetic studies show its ferromagnetic behaviour and theoretical calculations revealed that Ni atoms are linked through BPE ligand antiferromagnetically and ferromagnetically through BTB ligand.