As you want here I am giving below Standard Chartered Bank Gariahat Branch Contact No:

Address
Standard Chartered Bank Gariahat Branch
208 R.B.Avenue, Gariahat, Kolkata, West Bengal, 700029
Phone: 033 6613 7812

Hours:
Wednesday 10AM–8PM
Thursday 10AM–8PM
Friday 10AM–8PM
Saturday 10AM–8PM
Sunday Closed
Monday 10AM–8PM
Tuesday 10AM–8PM

To get more branches contact info of Standard Chartered Bank in india I am telling some steps

Got to the Standard Chartered Bank india official website

Click on ATM/branches option which given on the top side

After click there you will land on branch locator page which look like given below