Women tied a rakhi on the wrist of their brothers and prayed for their lifelong well-being.
At Hyderabad in southern Sindh province, which has a sizeable Hindu population, a large number of Hindu girls and women thronged temples to pray for their brothers.
Traders set up makeshift stalls inside temples to sell trendy 'rakhis' in different colours and designs.
At Ehata Mohan Lal in Lahore, the Hindu community celebrated the festival at a special ceremony organised by the Hindu Sudhar Sabha.
After a puja, Hindu girls tied the sacred threads on the wrists of their brothers.
Hindu Sudhar Sabha leader Amarnath Randhawa described 'Raksha Bandhan' as a symbol of harmonious family life.
"This occasion reminds us of the need to develop a sense of protection not only for our sisters but also for society," he said.
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Raj Kumari, a 65-year-old Hindu woman, said: "I think this festival reflects the need for strong family relations and unity and brotherhood among all communities".
Mohini Kumari, a 12-year-old student, was happy to receive gifts and chocolates from her two brothers, Ameet Kumar and Sumeer Kumar.
"I love this festival as I receive lots of gifts and chocolates along with money from my brothers," Mohini said.