Tendulkar did not play a single match for Mumbai in the national championships last season while Zaheer figured in a few games to get back into full match fitness after an injury lay-off.
Also among the list of 35 probables announced by Mumbai Cricket Association's joint secretary Nitin Dalal are Amol Muzumdar, Bhavin Thakkar, Wilkin Mota and Vinit Indulkar who had not played for the team in the previous season.
"All these four players have become eligible to play for Mumbai after serving a one-year cool-off period (after representing other associations)," said Dalal.
MCA has also appointed for India skipper Nari Contractor as the head of its Cricket Improvement Committee, according to Dalal.
The list of probables: Sachin Tendulkar, Wasim Jaffer, Ajinkya Rahane, Rohit Sharma, Ajit Agarkar, Zaheer Khan, Abhishek Nayar, Ramesh Powar, Suryakumar Yadav, Dhaval Kulkarni, Amol Muzumdar, Iqbal Abdullah, Ankit Chavan, Aavishkar Salvi, Aditya Tare, Wilkin Mota, Hiken Shah, Vinit Indulkar, Bhavin Thakkar, Harmeet Singh, Kshemal Waingankar, Praful Waghela, Kaustubh Pawar, Balwinder Singh Sandhu (Jr), Sagar Gorivale, Siddhesh Lad, Javed Khan, Nikhil Patil (Jr), Prateek Dabholkar, Swapnil Salvi, Swapnil Pradhan, Neelkanth Parab, Mohd. Ameer, Rakesh Prabhu, Oninder Singh Gill.