Policy changes or doesn't, its going to be a lose for India if US pulls out.
Either our assets & agents in Afghanistan will be at risk or lives of many of our troops may cost.
The recent news going around says that, USA will maintain sizeable army in Afghan.
USA also has assets and business interest with the sand people..and the only way by which USA can sustain the pressure on these deals with the sand people is by projecting RAW power. USA will never create a vaccum IN EFFECT for others.
USA wont pull out of Afghan no matter what is said in the political lines...Its all optics for the running up to the US elections.
India has sustained and thrived in Afghan when the USA and pakistan both teamed up against India in ME. The presence of USA is not going to matter much for India in its position as many news media outlets are pouting. IMO, its not going to alter Indian position at all.
India should continue doing the silent diplomacy all over the ME and Afghan and do what it does best as always.