The data are not available with IITM. The data are to be purchased from India Meteorological Department. Please contact India Meteorological Department (IMD).
Contacts Details of IMD for Data Requirement:
National Data Centre
Additional Director General of Meteorology (Research).
India Meteorological Department,
Shivajinagar,PUNE 411 005
Phone : 020 - 25530992 or 020-25535211 Ext. 270 or 271
Fax : 020 - 25535435
E-Mail : firstname.lastname@example.org or email@example.com
Also see the link http://www.imd.gov.in/doc/addata.htm for names and addresses of officers for Data Supply from IMD.
Useful link to access datasets for various meteorological indicators like rainfall, temperature, humidity etc, from 1901 to 2002, for any part of India (India Waterportal site): http://www.indiawaterportal.org/metdata