Reg-Expression to validate Indian Mobile Numbers staring with +919, +918, +917, +916, 919, 918, 917, 916, 0, 9, 8, 7, 6

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Reg-Expression to validate Indian Mobile Numbers (+91, 91, 0) starting with 9, 8, 7, 6 and should be in the below formats:

  1. Just the number
8994455555
7994455555
6994455555
9994455555

99944 55555
99944-55555

999 445 5555
999-445-5555
  1. Starting with +91
+919994455555
+91 9994455555
+91-9994455555

+91999 445 5555
+91-999-445-5555
+91 999-445-5555
+91 999 445 5555

+9199944 55555
+91-99944-55555
+91 99944-55555
+91 99944 55555
  1. Starting with 91
919994455555
91 9994455555
91-9994455555

91999 445 5555
91-999-445-5555
91 999-445-5555
91 999 445 5555

9199944 55555
91-99944-55555
91 99944-55555
91 99944 55555
  1. Starting with 0
09994455555
0 9994455555
0-9994455555

0999 445 5555
0-999-445-5555
0 999-445-5555
0 999 445 5555

099944 55555
0-99944-55555
0 99944-55555
0 99944 55555
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2 Answers

Reg-Expression that supports all the above formats is

r'^((\+)?(91[\-\s]?))|(0[\-\s]?)?((([6-9]{1}\d{2})-?\s*?(\d{3})-?\s*?(\d{4}))|(([6-9]{1}\d{4})-?\s*?(\d{5})))$'

invalid formats:

54623987
56489 56489
563 589 6456
+91 563 898 5647
91 562563
91 5645555555
91 66555855575
0 55556 45654
  1. ((\+)?(91[\-\s]?)): (\+)? begin with a + sign (Not Compulsory) followed by (91[\-\s]?) gives 91, 91 and 91- (Not Compulsory).
  2. or |.
  3. (0[\-\s]?)? begin with a 0 (Not Compulsory).
  4. ((([6-9]{1}\d{2})-?\s*?(\d{3})-?\s*?(\d{4})) Consider ([6-9]{1}\d{2})-?\s*?, Indian Mobile Numbers begin with either 6, 7, 8 or 9, followed by any 2-digits from 0-9 (\d{2}). Next it will be no-space, (-) or space (Not Compulsory) - followed by next 3-digits from 0-9 (\d{3}). Which is again followed by no-space, (-) or space (Not Compulsory). Finally, 4-digits from 0-9 (\d{3}) --> Format 563-898-5647, 563 898 5647 or 5638985647
  5. or |.
  6. (([6-9]{1}\d{4})-?\s*?(\d{5})) Consider ([6-9]{1}\d{4})-?\s*?, Indian Mobile Numbers, followed by any 4-digits from 0-9 (\d{4}). Next it will be no-space, (-) or space (Not Compulsory) - followed by next 3-digits from 0-9 (\d{5}). --> Format 56389-85647, 56389 85647 or 5638985647.
user_166735570

try the following regex:

^(\+91[\-\s]?)?[0]?(91)?[789]\d{9}$
user_67630000
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