See all the legal heirs of your father including your step brother shall equal share of the pension amount.

Though if step brother is biological son of mother and not adopted by father then he shall have no share.

If he is not natural heir and further not adopted him, his claim shall not be maintainable.

If he is a legal heir then he can claim the share if the said pension account is not willed by father

Pension cannot be bequeathed by will 

on father demise only family members would be entitled to money lying in said account 

3) step brother cannot claim money lying in pension account 

Step brother woukd not be entitled to money lying in pension account 

all children (including stepchildren) have an equal right on the property of the deceased father 

1.On the death of your father his property gets devolved upon his legal heirs which include your step brother in equal share.

2. So both you and your brother have got equal share in it and neither of you can can claim exclusive share in it.

3. So send a legal notice to his employer seeking your due share form his terminal benefits.

4. If you do not get your remedy redressed then file a writ petition or case before the administrative tribunal.

All legal heirs class 1 have equal share in deceased fathers property 

1) Need to check whose name is mentioned as nominee in the Pension account. That person will get handover or transfer pension in his account. for other legal heirs has to go in court for respective shares.

Hi,

You step brother may claim but you defend his action for not being a natural heir. 

If there was no nomination made for pension account then your step brother being another legal heir to your father can also stake claim, he has got equal rights at par with you.

If your step brother was not born to your father then he is not entitled to stake any claim over his pension account.