With a lakh of capital, you can trade Mini's like GoldM, Lead and Zinc. Along with this you can trade Gold Guinea. How much risk you are exposing your account into is the most important factor in trading. If you keep a maximum of 6% open risk from all you trades, you have a fairly good opportunity to stay in the markets to experience both good and bad times.
On the other hand if you are exposing your account to more risk, a single streak of losing trades will some times not make you be in a good run. Diversify and risk lower, keeping risk at less than 1% of capital while opening a position and gradually increasing it as the position moves positive is a good strategy to follow.
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