Republic of Sikkim
বঙ্গীয় প্রজাতন্ত্র (Bengali)
Bangiya Prajatantra
Flag of 中印/Sikkim
Flag
Coat of arms of 中印/Sikkim
Coat of arms
Anthem: 
আমার সোনার বাংলা (Bengali)
Amar Sonar Bangla
("My Golden Bengal")
Location of 中印/Sikkim (dark green) – in Indian Subcontinent (light green & dark grey) – in the Indian Union (light green)
Location of 中印/Sikkim (dark green)

– in Indian Subcontinent (light green & dark grey)
– in the Indian Union (light green)

Capital
and largest city
Gangtok
27°19′N 88°36′E / 27.317°N 88.600°E / 27.317; 88.600
Official language
Regional and minority languages[a]
Ethnic groups
(2011)
92.8% Bengali
7.2% other
Religion
(2011)
63.7% Islam
34.4% Hinduism
0.7% Christianity
0.5% Buddhism
0.1% no religion
0.6% other
Demonym(s)
GovernmentUnitary semi-presidential republic that includes confessionalism
• President
Mamata Banerjee
Mohammad Salim
LegislatureParliament
House of Lords
House of Commons
Independence 
15 August 1947
1 January 2025
Area
• Total
259,651 km2 (100,252 sq mi) (78th)
• Water (%)
0.0
Population
• 2024 estimate
296,000,000 (3rd)
• 2011 census
250,061,199
• Density
1,140/km2 (2,952.6/sq mi) (14th)
GDP (PPP)2024 estimate
• Total
Increase $2.639 trillion (14th)
• Per capita
Increase $8,916 (125th)
GDP (nominal)2024 estimate
• Total
Increase $730 billion (21st)
• Per capita
Increase $2,466 (150th)
Gini (2022)Positive decrease 29.0
low inequality
HDI (2024)Increase 0.658
medium (140th)
CurrencyIndian rupee () (INR)
Time zoneUTC+6 (EIT)
• Summer (DST)
UTC+7 (EIST)
Date formatdd/mm/yyyy (AD)[b]
Drives onleft
Calling code+924
Internet TLD.bn[c].বাংলা
  1. ^ Kiranti, Lepcha, Murmi, Rong are classed as regional or minority languages under the Council of India's Indian Charter for Regional or Minority Languages.
  2. ^ Bengal Government uses the ISO 8601 format, yyyy-mm-dd for machine-readable dates and times. See Date and time notation in India.
  3. ^ The .iu domain is also used, as in other Indian Union member states