Over the past two decades, there has been a significant surge of interest in the field of ultraviolet and/or visible (UV/vis) light photocatalysis. UV-vis irradiation merged with noble metal-based photosensitizers of Ru, Ir as catalysts is most useful combination in this segment as these metal photocatalysts mostly absorb in the UV/vis region. However, high energy UV/vis irradiation sources as well as the noble-metal based photosensitizer are not considered as green. Using organic fluorophores having excellent photophysical properties in the near infrared (NIR) region can be a crucial alternative for sustainable catalysis. Though, the absorption maximum of majority of the reported organic photosensitizers lies in the range of 300-500 nm. And, this region only covers a limited part of solar spectrum, thus, may limit the practical application of photocatalytic processes in certain conditions. By adopting two-photon absorption (TPA) strategy can offer the direct access to NIR region, but designing appropriate TPA photocatalyst needs judicially modulating donor-π-acceptor-π-donor-conjugated (D-π-A-π-D) structure. Inspired by previous report, designer pyridine-based organic photocatalysts with tunable branched octopolar D-A acritarches are synthesized, which show considerable TPA feature (up to 600 GM) with viscosity-dependent photophysical properties. In particular, the optimal organocatalyst showing the advantages of large TPA cross-section and long triplet state lifetime, can achieve the utilization of NIR light and control the direction of energy transfer for green photoredox cyclization.