• 20th-century establishments in India by state or union territory (6 C)

0–9

• 1900s establishments in India (13 C)
• 1910s establishments in India (13 C, 1 P)
• 1920s establishments in India (12 C, 5 P)
• 1930s establishments in India (12 C, 5 P)
• 1940s establishments in India (14 C, 12 P)
• 1950s establishments in India (12 C)
• 1960s establishments in India (13 C, 1 P)
• 1970s establishments in India (13 C, 3 P)
• 1980s establishments in India (13 C, 5 P)
• 1990s establishments in India (13 C)

A

• 20th-century establishments in Andhra Pradesh (5 C)
• 20th-century establishments in Arunachal Pradesh (4 C)
• 20th-century establishments in Assam (5 C)

B

• 20th-century establishments in Bihar (5 C)
• 20th-century establishments in Bombay State (2 C)
• 20th-century establishments in British India (5 C, 1 P)

C

• 20th-century establishments in Chandigarh (5 C)

D

• 20th-century establishments in Dadra and Nagar Haveli (3 C)
• 20th-century establishments in Daman and Diu (2 C)
• 20th-century establishments in Delhi (5 C)

F

• 20th-century establishments in French India (1 C)

G

• 20th-century establishments in Goa (2 C)
• 20th-century establishments in Goa, Daman and Diu (3 C)
• 20th-century establishments in Gujarat (4 C)

H

• 20th-century establishments in Haryana (4 C)
• 20th-century establishments in Himachal Pradesh (5 C)

J

• 20th-century establishments in Jammu and Kashmir (5 C, 1 P)
• 20th-century establishments in Jharkhand (1 C)

K

• 20th-century establishments in Karnataka (3 C)
• 20th-century establishments in Kerala (5 C)

L

• 20th-century establishments in Lakshadweep (2 C)

M

• 20th-century establishments in Madhya Pradesh (5 C)
• 20th-century establishments in Madras State (1 C)
• 20th-century establishments in Maharashtra (4 C)
• 20th-century establishments in Manipur (5 C)
• 20th-century establishments in Meghalaya (3 C)
• 20th-century establishments in Mizoram (3 C)
• 20th-century establishments in Mysore State (3 C)

N

• 20th-century establishments in Nagaland (4 C)

O

• 20th-century establishments in Orissa (6 C)

P

• 20th-century establishments in Pondicherry (5 C)
• 20th-century establishments in Punjab, India (6 C)

R

• Railway stations in India opened in the 20th century (10 C, 1 P)
• 20th-century establishments in Rajasthan (6 C)

S

• 20th-century establishments in Sikkim (7 C)

T

• 20th-century establishments in Tamil Nadu (4 C)
• 20th-century Indian television series debuts (5 C)
• 20th-century establishments in the Andaman and Nicobar Islands (4 C)
• 20th-century establishments in Travancore–Cochin (1 C)
• 20th-century establishments in Tripura (5 C)

U

• 20th-century establishments in Uttar Pradesh (5 C)
• 20th-century establishments in Uttarakhand (3 C)

W

• 20th-century establishments in West Bengal (6 C)