Why aren't there any alumni from IIT Guwahati that are as successful as alumni from other older IIT's?

I don’t believe there aren’t any alumni from IIT Guwahati that are as successful as alumni from other IITs. In fact, there are many who have made a strong impact on the socio-economic situation of the nation and have global recognition too

Some of the famous alumni at IIT Guwahati are:

• Shekhar Singh Dalal: He belongs to the 2005-2009 batch. Shekhar finished his MS from the University of California, Berkeley, and came back to India to serve the nation. Surprisingly, he got 71st rank in his first attempt in Civil Services Examination - 2011 and is now an IAS.
• Ankit Nagori - He was one of the founders of Flipkart although he is no more a part of it.
• Sanjay Dhar: He is the co-founder of the semiconductor company, Sankalp Semiconductor
• Abhinav Tiwari: He is the co-founder and CEO of the education technology company,
• Testbook
• Sachin Gupta: He is the co-founder and CEO of the consumer internet company, InMobi
• Anurag Srivastava: He is the co-founder and CEO of the healthcare technology company Sigtuple
• Amitabh Kant: He is the CEO of NITI Aayog, Government of India
• Naveen Tewari: He is the co-founder and CEO of the mobile advertising company, InMobi 

These are just a few examples of the many accomplished individuals who have graduated from IIT Guwahati. It should be noted that this list is not exhaustive and there are many more successful alumni from IIT Guwahati. However, the list is certainly small compared to other IITs. This may be because of its late establishment.