Stamp duty on share certificates

the stamp duty as per my understanding is paid as per the stamp act, which is applicable in the state where teh shares have been issued means the place where the board meeting had been held to issue the shares to the applicants

Ours is Pvt Ltd Co. regd in UP .

We have issued Duplicate Share Certificate ( withn Regd office address on top) in a Board Meeting held in Mumbai - Maharashtra.

I would like to know ;

1. for payment of Stamp Duty, what is the basis , is it Regd office address or the place of Board Meeting in which DSC is issued.

2. The amount of Stamps to be affixed? what will be the value applicable in UP and in Maharashtra?

3. Stamps to be affixed will be - Special Adhesive Stamp / franking / normal Revenue Stamp?

3. Who can sign the Duplicate Share Certificate

Regards

Parmar Gunvant