Explanation: On August 7, 1905, with the passage of the Boycott Resolution in a massive meeting held in the Calcutta Townhall, the formal proclamation of Swadeshi Movement was made.

• After this, the leaders dispersed to other parts of Bengal to propagate the message of boycott of Manchester cloth and Liverpool salt.
• October 16, 1905, the day the partition formally came into force, was observed as a day of mourning throughout Bengal.
• People fasted, bathed in the Ganga and walked barefoot in processions singing Bande Mataram (which almost spontaneously became the theme song of the movement).
• Surendranath Banerjea and Ananda Mohan Bose addressed huge gatherings (perhaps the largest till then under the nationalist banner). Within a few hours of the meeting, Rs 50,000 was raised for the movement.
• Soon, the movement spread to other parts of the country—in Poona and Bombay under Tilak, in Punjab under Lala Lajpat Rai and Ajit Singh, in Delhi under Syed Haider Raza, and in Madras under Chidambaram Pillai.

Source: Spectrum Modern India