|1990 - Elque Polyesters Ltd. was incorporated for manufacturing thermoplastics.
1996 - The company had commissioned its 19,800 tpa continuous process PET plant that was of only one of its kind in India.
1999 - The company had initiated to expand the capacity of its 100% export-oriented PET resin manufacturing unit in the Falta Export Processing Zone in West Bengal with investment of about USD 67 millions.
2002 - The principal promoters of the company, Abhijit Sen and Associates, holding direct control over 70% stake in the company, had planned to sell their entire stake on getting an attractive offer.
- The company had ranked 854th position by Business Standard in terms of net sales in 2001-2002.
2006 - Mr. Jyotirmoy Kar Roy was appointed as director and whole time director of the company on 30th March 2006, for a period of five years with effect from January 28, 2005 till January 27, 2010.
- On 30th March 2006, members of 15th annual general meeting of the company had accorded to change the name of the company from 'Elque Polyesters Ltd' to 'Sen pet India Ltd'.
2007 - According to the auditors observation, the plant had been temporarily shut down due to uneconomic market condition.