Gurudwara Bangla Sahib, one of Delhi's most revered Sikh sanctuaries, embodies a profound journey from royal residence to spiritual haven. The site's story begins in the 17th century as Jaisinghpura Palace, a bungalow belonging to Raja Jai Singh, a Hindu Rajput ruler. The term "Bangla" in the gurdwara's name pays homage to this original bungalow, marking the physical and spiritual transformation that would unfold over centuries.

The gurdwara's sacred status is inexorably linked to the eighth Sikh Guru, Guru Har Krishan. In 1664, the young Guru, merely eight years old, took residence at Raja Jai Singh's bungalow during his stay in Delhi. It was here that he spent his final days, tending to smallpox victims during an epidemic before succumbing to the disease himself on March 30, 1664. His presence and sacrifice sanctified the grounds, laying the foundation for its future as a spiritual sanctuary.

The transformation of the site into a gurdwara came through the efforts of Sikh General Sardar Baghel Singh in 1783, during the reign of Mughal Emperor Shah Alam II. This development was part of a broader initiative that established nine Sikh shrines across Delhi, reflecting the growing influence of Sikhism during the declining years of the Mughal Empire. The general's vision helped create what would become one of the most significant Sikh spiritual centers in India's capital.

The architectural marvel that stands today represents a masterful fusion of traditional Sikh design elements and contemporary engineering. The gurdwara's most distinctive feature is its magnificent golden dome, which serves as both a spiritual beacon and an architectural triumph. The structure is predominantly crafted from white marble, creating an atmosphere of serene majesty. The complex encompasses several essential components, including a spacious prayer hall that houses the Guru Granth Sahib, a sacred pool known as the Sarovar, and an extensive Langar hall dedicated to the practice of communal dining.

The construction history of Bangla Sahib reflects evolving building techniques across generations. The original structure utilized traditional materials like Nanak Shahi bricks and lime mortar, while subsequent renovations have incorporated modern construction methods and materials. The golden dome, particularly noteworthy, features copper and polished brass, materials chosen for their durability and lustrous appearance that symbolizes the divine light of spiritual wisdom.

The gurdwara's role in community service stands as a testament to the Sikh principle of seva (selfless service). The Langar kitchen operates continuously, providing free meals to tens of thousands daily, regardless of faith, caste, or social status. During festivals or times of crisis, the kitchen's capacity expands dramatically, serving over 100,000 meals daily. This commitment to humanitarian service was particularly evident during the COVID-19 pandemic when the gurdwara maintained its food service operations despite challenging circumstances.

Beyond its spiritual significance, Bangla Sahib has played crucial roles during historical moments of crisis. During the anti-Sikh riots of 1984, the gurdwara provided sanctuary to approximately 150 Sikhs, demonstrating its function as a refuge during tumultuous times. The sacred pool within the complex, believed to possess healing properties, continues to draw visitors seeking physical and spiritual healing. The gurdwara remains alive with the continuous melody of kirtan, creating an atmosphere of deep spiritual connection.

In recent years, Bangla Sahib has expanded its service mission through modern initiatives while maintaining its traditional values. A notable addition is the low-cost diagnostic center launched in March 2021, offering medical services at significantly reduced rates. The gurdwara complex has evolved into a multifaceted institution that serves spiritual, cultural, and humanitarian needs while preserving its historical legacy. Today, it stands as a living symbol of communal harmony, spiritual solace, and selfless service, welcoming millions of visitors annually who come to experience its peaceful ambiance and participate in its traditions.