As you are looking for important Email Id of Standard Chartered, so here I am providing following Email Id:

Customer Care Email Id:
Standard Chartered Bank, Customer Care Unit,
19, Rajaji Salai, Chennai 600 001.
Alternatively, email us at customer.care@sc.com

Phone Banking Numbers
Ahmedabad, Bangalore, Chennai, Delhi, Hyderabad, Kolkata, Mumbai, Pune
6601 4444/ 3940 4444

Allahabad, Amritsar, Bhopal, Bhubaneswar, Chandigarh, Cochin / Ernakulam, Coimbatore, Indore, Jaipur, Jalandhar, Kanpur, Lucknow, Ludhiana, Nagpur, Patna , Rajkot, Surat, Vadodara
6601 444/ 3940 444

Gurgaon, Noida
011 – 66014444 / 011 – 39404444

Jalgaon, Guwahati, Cuttack, Mysore, Thiruvananthpuram, Vishakhapatnam, Mathura, Proddatur, Dehradun, Saharanpur (For domestic dialing within India only)
1800 345 1000

Siliguri (For domestic dialing within India only)
1800 345 5000

SMS
24 hour Service Assurance
SMS 'service' to 9980033333

Dispute Declaration Form
Credit Card Dispute E-mail id - card.services@sc.com or Fax Number - 080-66959595
Debit Card Dispute E-mail id - card.services@sc.com

Mr. Arun Kumar R
Principal Nodal Officer
Standard Chartered Bank
Customer Care Unit
19, Rajaji Salai
Chennai 600 001
Principal.NodalOfficer@sc.com
Contact No: 080-42896718 / 080-28089025