G.R. Thanga Maligai popularly known as GRT has for over 2 decades been a treasure house of the finest jewellery. Established in 1964 by Mr. G. Rajendran, GRT has been South India's leading jewellery house ever since. His sons - Mr. Ananthapadmanabhan and Mr. Radhakrishnan both follow his footsteps. The former is a 'Graduate Gemologist' and 'Graduate Jeweller Gemologist' from the Gemological Institute of America and an expert in the study of diamonds and colored stones. The latter is a certified Diamond Grader from HOGE RAAD VOOR DIAMANT VZW, Diamond High Council, the HRD Institute of Gemology, Belgium.

GRT jewellery is showcased in an elegant 12,000 sq.ft. showroom spread over 5 massive floors. With 4 floors dedicated to gold, an exclusive diamond showroom - the first in India, and one entire floor with silverware. GRT offers the widest variety of jewellery, from elegant rings to dramatic platinum and antique-style designs, fine silverware to complete bridal sets. GRT also has the entire range of 'Thalis' for any marriage.

Yet another important element is the firm belief held by thousands of customers that GRT jewellery brings RAASI and GOOD LUCK.

Now GRT has diversified into various other domains to spread their philosophy of Value and Trust.

The G.R.T qualities of purity and integrity are not confined only to jewellery. The G.R. Thangamaligai Educational Trust with the support of Shri. G. Rajendran, a philanthrope and the blessings and presence of His Holiness Shri. Jayendra Saraswati Swamigal and His Holiness Shri. Vijayendra Saraswati Swamigal, setup the G.R.Thangamaligai Mahalakshmi Vidyalaya Matriculation Higher Secondary School in 1992.

With dedication, motivation and the benevolent attention of the founder, the school has made strident progress within a short span of nine years.

These have made the GRT Group one of the leading business houses in South India with a devoted base of customers who have been its patrons for generations.