Rameshchandra Gangaram “Bapu” Nadkarni was one of the legendary figures of the bad old days of pre-1971 Indian Test cricket, as he played from 1955 to 1968. His last Test was the 4th of the long-forgotten Indian tour of New Zealand which the visitors won 3-1. That was the first time India ever won a Test outside India, and naturally the first series win as well.
Typically, he signed off with 2-1-1-1, an economy of 0.50 while Prasanna and Bedi (with a little help from Surti) dismissed the home team for 101 facing 374.
He could be described as one of the most economical bowlers in Test history, as you can see here. He is 4th on the all-time list, after Attewell, Gladwin and TL Goddard.
And the famous 32-27-5-0 at Chennai with an economy rate of 0.156 is here too:
While that is first on the all-term economy list, he also has the 3rd position of 14-11-3-0 (0.214) which was also in that yawn-inducing series of 1963-64.
He was also good enough batsman to score a century and 7 other fifty-plus scores in Tests.
Anyway, this should give you a fair idea of his career.
As an afterthought, let us look how he compares with other left-arm spinners:
Left-arm spinners (minimum 2000 balls):
Ranked by economy rate (less than 2.25):
No prize for guessing who tops this list. Also note that Mankad, Bedi, Doshi and Raju are in the bottom half of the table.
And Nadkarni has one more record-the first Test player to die in the 2020s.