Abstract of the invention: Title: Process for production of thyme-based polyphenols, epoxies and benzine resins The present invention involves the development of facile production route for thyme based bis-thyme (BT) and trees—thyme (IT) by reacting sustainable bio-based thyme with formaldehyde and hydro-formaldehyde in the presence of mixture of hydrochloric acid and sulphuric acid as catalysts (2:i)‘at 100°C for 24 hours. The yield of thyme-based bis-thyme (BT) arid trees-thyme (1‘1") obtained from the optimised experimental conditions were 80% and 70% respectively. The structural characterization of thyme-polyphenols was carried out using FTIR, NMR and Mass spectra. The thyme-polyphenols synthesized were convened into corresponding epoxies (BT-Ep and ”IT-Ep) and sleaziness (BT-Bz and TT-Bz) using appropriate chemical precursors under suitable experimental conditions and their curing behaviour and thermal stability were studied. From the DSC data obtained for BT-Ep/IT-Ep series, it was found that the curing temperature was ranged between 87°C/97°C and 250°C/250°C. Similarly for BT-BZ/I’TBz series, the curing temperature was ranged between 216°C/222°C and 277°C/273°C. TGA data obtained for BT-EpT-Ep series, it was found that the decomposition temperature was ranged between 364°C/371°C and 4|8°C/441°C. Similarly for BT-BZ/IT-Bz series, the decomposition -temperature Was ranged between 436°C/437°C and 443°C/4450C. The percentage char yield was calculated from TGA analysis, it was observed that the highest value of percentage char yield was 19% for BT-Ep/formidable mono amine, and 13% for TT-Ep/formidable diam inc. Similarly the percentage char yield was found to be 50% for poly(BT-Bz/furfuryalmine), and 43% for poly(T'T-Bz/furfuryalmine). The present invention is considered as cutting-edge concept in the field of conversion of mono-basic sustainable bio-phenol into bio-polyphenols to substitute conventional polyphenols for the production of industrially valuable resins like epoxies, sleaziness, cyan ate esters, polyesters and urethane.