Regular Expression Validation For Indian Phone Number and Mobile number

Question

I want to validate Indian phone numbers as well as mobile numbers. The format of the phone number and mobile number is as follows:

For land Line number

Answer 1

I use the following for one of my python project

Regex

(\+91)?(-)?\s*?(91)?\s*?(\d{3})-?\s*?(\d{3})-?\s*?(\d{4})

Python usage

re.search(re.compile(r'(\+91)?(-)?\s*?(91)?\s*?(\d{3})-?\s*?(\d{3})-?\s*?(\d{4})'), text_to_search).group()

Explanation

(\+91)? // optionally match '+91'
(91)?   // optionally match '91'
-?      // optionally match '-'
\s*?    // optionally match whitespace
(\d{3}) // compulsory match 3 digits
(\d{4}) // compulsory match 4 digits

Tested & works for

9992223333
+91 9992223333
91 9992223333
91999 222 3333
+91999 222 3333
+91 999-222-3333
+91 999 222 3333
91 999 222 3333
999 222 3333
+919992223333