@Mr. Agrawal - yes index returns were beaten easily at overall capital level (Secondary Market + IPOs).
When it only comes to IPOs my capital was not constant throughout the year, I added a lot of capital throughout the year after liquidating from secondary market (due to overexposure to one share). So, that calculation I have not done.
From what I have observed IPOs are more about luck, If you are doing only IPOs then you need to make sure you are lucky enough to get disproportionately high allotments in good IPOs.
Second way is to target only SMEs with capital > 5 Cr, to get assured allotments in 90% of the SME IPOs (this number can be lower depending on new entrants).
If luck is not favoring you then I would say, better to look for other options than wasting the time here.
I've learnt it the hard way after spending almost 12 months hoping for luck to improve (always less than average allotments when it mattered the most).