Moreover, as mentioned in the introduction, TPA crystals exhibit thermosalient and mechanosalient effects that leads to polymorphic phase transition. Since the stability of TPA crystals are determined by a subtle balance of the intra and interchain H-bonds and the van der Waals interaction between two TPA sheets, we envisage that it would be interesting to explore the role of NQEs on the above mentioned properties exhibited by TPA in particular and similar molecular crystals in general. We believe that our study on form I of TPA has laid the foundation to further explore role of NQEs and DPT on polymorphic phase transitions exhibited by these crystals.