I think the only thing that can make bitcoin mining feasible at the moment is ultra-cheap electricity. In addition, you need to get miners at a good price while their performance is still up to par. Difficulty is rising all the time, which reduces the bitcoin output of your miners very quickly. The point where they don't yield a revenue even with cheap energy comes much too soon.
Onkel Paul
Is there any way to design ASIC locally ?
Sure! If you have a minimum of $10,000,000 to invest (probably more). Designing an ASIC chip and manufacturing a miner is for everyone!!
And you should be able to do that in less than a year, if you're lucky and know exactly what you are doing.