Kolkata, June 24 (IANS): Braving heavy showers, hundreds of people from India and abroad bade adieu to Mother Teresa's successor Sister Nirmala here on Wednesday, recalling the nun's dedication and courage.

Sister Nirmala's body, placed in a glass casket with candles and wreaths at her feet, was kept at the Missionaries of Charity's global headquarters Mother House where the funeral mass was attended by political and religious leaders, as also the poorest of the poor.

Sister Nirmala, Mother Teresa's successor as superior general of the Missionaries of Charity, died on Tuesday following renal failure and heart complications.

The mass was led by Archbishop of Kolkata Father Thomas D'Souza who spoke in glowing terms about the nun's life and achievements, her deep spirituality and her love for the poor and the needy.

West Bengal Chief Minister Mamata Banerjee recounted her affable personality and service to the poor.

"Sister Nirmala always had a smile on her face. Physically we may have lost her but she will be alive through her ideology and philosophy," Banerjee said as the nuns sang songs, including Rabindra Sangeet.

Banerjee was accompanied by city mayor Sovan Chatterjee, Trinamool Congress MP Derek O'Brien and Kolkata Police Commissioner S.K. Purkayastha.

Sister Prema, head of the MoC, described her as the embodiment of courage and compassion that Mother Teresa stood for.

"She spread the message of love and compassion to all she met. There were no manipulations, no pretenses. She gave each one time and space to unfold their concerns. She welcomed all," said Sister Prema, who succeeded Sister Nirmala as the superior general of the catholic congregation in 2009.

Cutting across class and religious barriers, a steady stream of visitors trickled in since 10 a.m. in south Kolkata's Mother House where the body was kept for public viewing beside Mother Teresa's marble tomb.

As rain pelted down on the narrow entrance to the building, close to 250 citizens, including the nuns, gathered around in the airy room to "celebrate her legacy".

Several clicked photos and joined in singing hymns, amid tight security.

Prominent among the visitors were the elderly who were helped by the nuns of the charitable organisation to approach the glass casket and offer flowers.

Frail and wispy, but smiling, 83-year-old B. Collins walked in gingerly, aided by a nun.

"She was ever-smiling and always helpful. How can I weep? She lived a full life and did her part for humanity," Collins, who is cared for by the organisation, told IANS.

In the backdrop of hymns of 'Maria Tujhe Pranam' softly echoing across the room, Mohammed Parwez hobbled in clutching a garland.