I got a PPO after interning with SAM Delhi; however, have not yet been informed about the Team and the location. Are there chances that I'll not be allotted Delhi or be given a different Team/practice area? How much time do they usually take to specify all this?

Which practice area did you work in during your previous internships?

Disputes

Normally, if a PPO is given to you after interning with a specific team, you would be allocated to that team only. The official confirmation is unlikely to be given anytime soon, often it gets delayed till a couple of months before joining even. However, if you wish to get an unofficial confirmation, I would recommend that you talk with an associate from the team and ask them about it. They may not agree to commit anything over email at this stage, so a telephonic conversation may be a better option.