Presidential Polls in India

Witnessing the current presidential polls in India, lots of things come to mind both about the system of election as well as the kind of candidates it brings in.

Firstly How will a person elected as president on the mercy of a political party act independently when he has to make important future constitutional decisions involving the fate of such party? Doesn't this seem to be the biggest flaw in electing our sovereign in India by indirect election rather than a direct election?
Here president is drawing power from one or more political parties. Will s/he show gratitude and accountability to them or to the people of India? Agreed that the MPs and MLAs themselves are elected by people so indirectly their choice represents the choice of people. But this to some extent is OK if parliament,assembly and presidential elections are synchronized. But as it is happening now, a president is chosen by MPs and MLAs elected some 2/3/4 years ago, by now some or all of them would have become so unpopular that an immediate election now makes them all to lose elections. But still they get to choose the president anulling the pretext that presidential election reflects people's choice.

Secondly what kind of candidates crop up in the current system of presidential polls? Candidates whose names are unknown to most people of the country !!!, assuming they are well known all over the country what is thier position/opinion on the issues that matter? Do they have enough insight to steer presidential duties etc, how will a common man come to know the calibure , ideological standings, intellectual capabilities etc of a person who is going to be their sovereign?

If a person who is about to retire or had already retired is made the incharge of a nation, what active interest and "attached" responsibility will s/he take in discharding presidential duties. Wouldn't he or she be detached and aloof if they have no future career? Assuming they have a future career, given the method of election wouldn't they be indebted to people who will possibly rehabilitate him/her after the tenure?

At the end, all of you can say, who cares, president is anyways a rubber stamp in India, its an altogether different matter but according to Rajinder Puri's article in Outlook a week or two weeks ago, even constitutionally also president need not be a rubber stamp if he s/he chooses not to be.