From a Lifelong Hobby to a Treasured Collection

Sigma Stamps is the creation of Bhanoji Rao Vadlamani, a former banker. After a distinguished banking career spanning decades, he dedicated himself fully to his lifelong passion — philately. What began as a young boy’s fascination with the tiny works of art on envelopes has grown into one of the most comprehensive private collections of Indian and international postal stamps.

Sigma Stamps was born from a simple desire — to share these treasures with fellow collectors and enthusiasts across India and beyond. Every stamp in our collection has been carefully curated, preserved, and catalogued with the same meticulous attention to detail that defined Bhanoji Rao’s career in banking. For him, each stamp tells a story — of history, culture, artistry, and the remarkable journey of postal communication.