As you want Phone Number of branch of South Indian Bank located in MayurVihar Phase 1 to get IFSC Code, so here I am providing following Phone Numbers with other details:

NEW DELHI MAYUR VIHAR
GROUND FLOOR PANKAJ GRAND PLAZA, CSC, MAYUR VIHAR PHASE 1, NEW DELHI-110091
Br.Incharge : Ms.REKHA RAMAKRISHNA KINI,
MANAGER
Region : DELHI
IFSC Code : SIBL0000434
Phone : 011-22753982
Email :br0434@sib.co.in

Other Nearest Branches of South Indian Bank in Delhi:

NEW DELHI - NARAINA VIHAR
E-20, GOSWAMI GIRDHARI LAL MARG, NARAINA VIHAR, NEW DELHI-110028
Br.Incharge : Mr.AKHIL JOSE PARAKKAL,
MANAGER
Region : DELHI
IFSC Code : SIBL0000651
Phone : 011-25896827
Email :br0651@sib.co.in

NEW DELHI CON.PLACE
22, REGAL BUILDING CONNAUGHT PLACE, NEW DELHI-110001
Br.Incharge : Mr.ASHISH PRASAD,
CHIEF MANAGER
Region : DELHI
IFSC Code : SIBL0000153
Phone : 011-23361585, 23742009, 23348934
Email :br0153@sib.co.in

NEW DELHI DWARKA
PLOT NO. 9, 1ST FLOOR, PANKAJ ARCADE, SECTOR 10, DWARKA-110075
Br.Incharge : Mr.SIBU GEORGE,
MANAGER
Region : DELHI
IFSC Code : SIBL0000398
Phone : 011-25088244, 25081524
Email :br0398@sib.co.in

DELHI- SHALIMAR BAGH
DO.NO.BT-1, SHALIMAR BAGH, SHALIMAR BAGH P.O., NEW DELHI-110088
Br.Incharge : Mr.ABIN SAMUEL,
MANAGER
Region : DELHI
IFSC Code : SIBL0000725
Phone : 011-27486296
Email :br0725@sib.co.in

DELHI- MODEL TOWN
PLOT NO.22, BLOCK C-5, MODEL TOWN PHASE- III, OPP POST OFFICE, MODEL TOWN-III, NEW DELHI-110009
Br.Incharge : Mr.AMIT KUMAR SINGH,
MANAGER
Region : DELHI
IFSC Code : SIBL0000724
Phone : 011-27232161
Email :br0724@sib.co.in

NEW DELHI RAJOURI GARDEN
E-6, RAJOURI GARDEN, NEW DELHI-110027
Br.Incharge : Mr.PUNEET THAKRAL,
MANAGER
Region : DELHI
IFSC Code : SIBL0000424
Phone : 011-25115562, 25455562
Email :br0424@sib.co.in

NEW DELHI SAINIK VIHAR
ANAND PLAZA, 1ST FLOOR, PLOT NO. 2 LSC, SAINIK VIHAR, PITAMPURA-110034
Br.Incharge : Ms.LAKSHMI GOPAKUMAR S,
MANAGER
Region : DELHI
IFSC Code : SIBL0000421
Phone : 011-27028669
Email :br0421@sib.co.in