* RELINFRA shrs up 2% ahead of China's Shanghai Electric Corp. JV
* Gujarat Flouro shrs up 10.5% on 2.3-bln-rupee worth carbon credit
* PTC India shrs up 4% as Apr-Jun net rises 59% on year
* L&T shares up 4% ahead of Apr-Jun earnings
* ITC to up Gold Flake Filter price 4 rupees/10 sticks
* Ranbaxy launches omeprazole 40 mg capsules in US
* Sugar shrs up on positive outlook on product prices
* Share indices rise 1%; capital goods, realty cos top gainers