Yes. It should be between 1-2 KMS from MS-MAS.
Distance from Chinthamani (Anna Nagar East) is 5.5 KMS to Egmore and 7 KMS to MAS.
As per MTC bus its 4th Stage from Chinthamani and from Egmore - PH Road exit, MAS is first stage for fare collection.
1 Stage is roughly 1-2 KMS.