India and Pakistan on Ausgust 15 1947, showing which princely states didn't immediatley join either country
List of states with dates of accession:
States that joined Pakistan:
-Bahawalpur: October 5 1947
-Chitral: November 6 1947
-Dir: November 8 1947
-Kalat: March 31 1948 (Occupied from March 27)
-Khairpur: October 9 1947
-Kharan: March 17 1948
-Las Bela: March 17 1948
-Makran: March 17 1948
-Swat: November 24 1947
States that joined India
-Bhopal: August 26 1947
-Cochin: July 1 1949
-Cooch Behar: September 12 1949
-Hyderabad: November 24 1949 (occupied from September 17 1948)
-Jaipur: April 7 1949
-Jodhpur: April 7 1949
-Khasi States Federation: January 25 1950
-Manipur: October 15 1949
-Mysore: January 25 1950
-Piploda: June 15 1948
-Pudukkotai: March 1 1948
-Tripura: October 15 1949
-Travancore: July 1 1949
Unique Cases
-Kashmir:
--October 4 1947: Pakistan establishes Azad Kashmir
--October 27 1947: Kashmir accedes to India
--November 16 1947: Kashmiri states of Hunza and Nagar accede to Pakistan
-Junagadh:
--September 15 1947: Joins Pakistan
--November 9 1947: Occupied by India
--February 25 1948: Joins India