I think you run a very serious risk of being refused travel by Aeroflot, because as far as they are concerned, you will be flying to Amsterdam (end of your trip) and if you do not have a Schengen visa, they will not want to let you go there.

If you were on a through ticket, they would expect you to transit, but if you are on separate tickets, they are likely not to take your word (even if you show an award ticket booking on a separate reservation) that you do not intend to try and leave at AMS, in which case, SU would be obliged to fly you back to India.

In short, I do not think that your idea of booking this itinerary on two separate tickets without a Schengen visa is a good one at all. In my estimate, you are quite likely to be refused to fly and lose your ticket and your money.