See Bandana Rani, I don't buy the arguments for looking at monetary terms at such an early stage of your professional career, especially when you can't compare PTU with IIMs/ISB, and also, I'm not assuming you are a merit holder. So, to my understanding, it's time to implement your learnings and nourish your skills. Certainly, to some extent now and up to a certain level, working with recruitment consultancies is acceptable in corporates as well. Don't try to compare yourself with others in your course if, for the time being, they are excelling on certain parameters, as professional careers are typically long and built upon your domain expertise and professional rigor. Thus, try to build on that, leaving all momentary worries behind.
To make you feel confident, I know a lady who is currently heading HR for Pan India and overseas operations for a telecom company. She started her career with a recruitment consultancy and then worked as an executive HR in a consumer durable plant. To avoid breaking any protocol, let me not discuss her further here. But I am sure you can also follow her path to success by owning your way of learning beyond capabilities. Good luck.