Give me information about important dates for public sector undertaking companies examination in India ?

Here I am giving you information about important dates for public sector undertaking companies examination in India ..

PSU exam dates :
BSNL JTO
Last date of application submission : April

PRASAR BHARATI
Engineering Assistants
Application available from: Jun /Jul
Last date of submission: Aug
Written Exam : Oct

BEL
Probationary Engineer
Online registration : Apr/May
Last date for receiving registration slip: May
Written Exam : Jul

NTPC
Executive Trainees
Online registration: Mar
Last date of submission: Mar
Written Exam : May

BHEL
Engineer Trainees
Online submission of
applications: Aug
Closing of online submission: Sep
Written Exam : Oct

DRDO
Scientist-B Entry
Application available from:May
Late date of submission: Jun
Written Exam : Sep

IOCL
Engineers/ Graduate Apprentice Engineers
Online application: Jan
Last date of submission of Online form: Feb

DMRC
Junior Engineers
Late date of submission :Aug
Written Exam: Oct

ONGC
Graduate Trainees
Registration : Apr
Last date for receiving registration slip with enclosures: May

ECIL
Graduate Engineer Trainee
Last date of submission of application form: Jul

NHPC
Trainee Engineers
Online registration : Apr/May

BPCL
Management Trainee
Online application submission: Jun
Written Exam : Aug

HPCL
Officer Trainees
Last date of submission of Online form: Jan