What are your goals with your investment as in...
1. Are you looking for multibaggers (there are some, but not all)
2. Are you looking for stable growth (viz. 4% above bank FD)
3. Are you looking for capital preservation
d. And as somebody mentioned, your time horizon?
That said I don't understand your thinking as regards to the sector-wise breakdown. How are CERA & ASIAN PAINTS in Infra sector?
The first thing you could do is either:
1. Keep only one company per sector (if you're into sectors)[This advice is applicable only if you're looking for multi-baggers, it narrow your focus and pushes you to be more confident about your choices].
2. Or stop thinking sector-wise.