"But I've already done two months and I'm targeting the international break in March to be back properly with the squad."
Manuel Pellegrini's men are second in the Premier League table after 23 games, ahead of Arsenal on goal difference and three points behind Leicester City, and Nasri hopes to return in time to help City's title push.
"We have a schedule and at the moment we are ahead... but I want to work hard and be back with the squad before the end of the season and I want to be back training normally with the team towards the end of March," he said.
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City travel to face second-from-bottom Sunderland on Feb. 2, after hosting Everton in the second leg of the League Cup semi-final on Wednesday and taking on Aston Villa in the fourth round of the FA Cup on Saturday.
(Reporting by Shravanth Vijayakumar in Bengaluru; editing by Amlan Chakraborty)
