CDSL in Wikipedia

Would you give me the contact details of CDSL?

Headquarter of Central Depository Services Limited is situated in Mumbai. It was established in 1999.
It is private business service industry.
CDSL is promoted by Bombay Stock Exchange Limited (BSE) with State Bank of India, BOI, Bank of Baroda, HDFC Bank, Standard Chartered Bank, and UNION Bank of India and Centurion Bank.
The main function of CDSL is to holding securities.

Services of CDSL:
Dematerialisation
Account opening
Account statement
Processing Delivery & Receipt Instructions
Rematerialisation
Nomination
Transmission of securities
Pledging
Bank a/c details
SMS

Contact details:
Central Depository Services (India) Limited
Regd. Office: 17th floor, P J Towers,
Dalal Street,
Mumbai - 400001

Here for your more reference I am giving some branches of CDSL:

CDSL Ahmehdabad
203/204, Abhishree Avenue,
2nd floorNear Nehur Nagar Circle,S.M.Road,
Ambavadi, Ahmedabad -
380 015 Gujarat
Ph. No.: 079-32936232

CDSL Bengaluru
No. 34 & 35Annapurna Complex South End Road Basavanagudi Bengaluru -
560 004 Karnataka
Ph. No.: 9902103263

CDSL Chennai:
BSE Investor Service Centre No. 4,
Vijaya Towers,
3rd Floor Kodambakkam High Road Chennai - 600 034
Tamil Nadu
Ph. no.: 9381995000

CDSL Hyderabad
Flat No.304, Right Wing, Amrutha Ville, Opp:Yashoda Hospital,
Raj Bhavan Road, Somajiguda,
Hyderabad – 500 082
Ph. No.: 040-30722562

CDSL JAIPUR
Central Depository Services (I) Ltd. Jaipur Stock Exchange Building, Ground floor, J L N Marg, Malviya Nagar,
Jaipur-302017
Ph. No.: 9314647826

CDSL New Delhi
BSE Investor Service Centre 15th Floor Gopal Das Bhawan 28,
Barakhamba Road
New Delhi 110001
Ph. No.: 011-43007413

My son Mr Milind Gole is at Christchurch, He is from India working there would like to open NRE account, Please help