Kamalamai (former name: Sindhulimadi; Nepali: सिन्धुलीमाडी) is a municipality in Sindhuli District, in the Bagmati Province of central south Nepal.

King Jaya Prakash Malla of Kathmandu sought help from the British and so the East India Company sent a contingent of soldiers under Captain Kinloch in 1767.

Of these, 65.4% spoke Nepali, 20.3% Tamang, 4.8% Magar, 2.8% Newar, 2.0% Danwar, 1.7% Maithili, 0.9% Vayu, 0.7% Majhi, 0.7% Sunwar, 0.1% Bhojpuri, 0.1% Gurung, 0.1% Rai, 0.1% Thangmi and 0.1% other languages.

[2] In terms of ethnicity/caste, 21.9% were Tamang, 19.9% Chhetri, 11.5% Magar, 10.3% Newar, 10.1% Hill Brahmin, 4.7% Kami, 3.8% Sarki, 3.5% Majhi, 3.2% Damai/Dholi, 2.2% Gharti/Bhujel, 2.1% Danuwar, 1.4% Hayu, 1.1% Sunuwar, 0.8% Sanyasi/Dasnami, 0.5% Thakuri, 0.3% Bhote, 0.3% Kalwar, 0.3% Rai, 0.2% Gurung, 0.2% Kathabaniyan, 0.2% Sonar, 0.2% Sudhi, 0.1% Hajjam/Thakur, 0.1% Halwai, 0.1% Kanu, 0.1% Kayastha, 0.1% Musalman, 0.1% Pahari, 0.1% Teli, 0.1% Thami, 0.1% Tharu and 0.2% others.

highly potato produce in kauchhe Kamalamai municipality has a good facility of education up to SLC levels.

Science college like Kamala Higher Secondary School is providing good practical based education to students of Sindhuli.

Koirala Highway to Kamalamai from Kathmandu opened in 2011 and continues on to Bardibas, though most areas only allow one lane of traffic with hairpin turns.

Long-route buses run under the local authority in the headquarters which has bus routes to cities like Kathmandu, Janakpur, Biratnagar and Pokhara.