Kindly increase your stamina slowly & gradually. if you take the route 'hop stop & jump' for your exercises, then you are likely  to get recurrence of symptoms.

You should play and lead a normal life. If you are able to tolerate the pain , then  there are no issues.

Well after injury of meniscus it is always better to refrain from strenous activities for the knees for at least a year. Stairs are on of the hardest things on the knees.So.make sure you climb them.slow and avoid jumping too much. Cricket you can play but be careful about re twisting you legs.And make sure you keep doing quadriceps exercises to strengthen the ligaments further..It will be back to normal in due course of time