Sir iran is india's friend but on paper. iran the one who helped pakistan in war with india. Even though sir pakistan and iran lost. iran never deny that it helped pakistan. What kind of friend iran is who stabbing on india's back? Why did they help pakistan when india was enemy of america? What excuse iran had that time sir? iran a backstaber. Picking between america and iran is like picking between horse and donkey. Sir india better without friendship of iran.
those were different times in different circumstances under different leaders, you cannot apply them to the present can you?
right now they could potentially agree on alot to each others benefit, plus its never a good idea to have cold relations with your neighbours, india are doing this because of the us.