Table:
text: Indian general election in Tamil Nadu, 1971
List of Elected MPs
List of Elected MPs
Constituency Winner Party Margin Runner_up_a Party_a
Chidambaram (SC) V. Mayavan DMK 22398 L. Elaya Perumal NCO
Kallakurichi M. Deiveekan DMK 21976 K. Veerasamy NCO
Krishnagiri T. Thirthagiri Gounder INC 34920 T. M. Thirupathy SWA
Salem E. R. Krishnan DMK 54796 M. P. Subramanyam NCO
Mettur G. Bhuvarahan INC 66140 K. Ramamurthy NCO
Tiruchengode M. Muthusami DMK 60047 T. M. Kaliannan NCO
Nilgiris J. Matha Gowder DMK 61094 Akkamma Devi NCO
Coimbatore K. Balathandayutham CPI 77053 Ramaswamy NCO
Pollachi Narayanan DMK 126206 K. R. Nallasivam SSP
Dharapuram (SC) C. T. Dhandapani DMK 116186 K. Paramalai NCO
Gobichettipalayam P. A. Saminathan DMK 60492 E. V. K. Sampath NCO

Question: What is the margin if k. Balathandayutham is the winner among the Indian general elections in Tamil Nadu, 1971?