1. We all agree that it is an INDIRECT ELECTION, RIGHT?.
Indirect Election doesn't mean that it will be the PERSONAL CHOICE of a few hundred elected representatives.
It means, the choice of people being indirectly reflected through these elected representatives when they elect the President.
Hence, TO VOTE OR NOT TO VOTE IS NOT THE PERSONAL PREROGATIVE OR PRIVILEGE OR RIGHT OF THESE ELECTED REPRESENTATIVES, BUT A DUTY, AN OBLIGATION THAT THEY HAVE TO PERFORM AS THEY ARE REPRESENTING ANYWHERE ABOUT 5 LAC (MP) TO 50,000(MLA) PEOPLE OF THEIR CONSTITUENCY!
That's why EVEN THOSE JAILED MPs/MLAs should be allowed/compelled to participate in the election. Their jailing is for their personal wrongdoings not for the wrongdoings of the citizens of their constituency. But here they have to perform a duty on behalf of the public in their constituencies.
HENCE, YOUR DECISION IS NOT JUSTIFIABLE, ATLEAST IN SPIRIT! IT IS SIMPLY UNDEMOCRATIC!