Jaisha clocked 2 hours, 37 minutes and 29 seconds in the 12th Standard Chartered Mumbai Marathon to better the nearly two-decade-old national mark of 2:39:10 set by Satyabhama from December 21, 1995, in Chennai.
In the process, Jaisha - the best Indian woman finisher in the event - also comfortably dipped under the 2:44 qualifying mark set by Athletics Federation of India for the IAAF World Championships in Beijing in August.
Significantly, both Jaisha and Lalita, coached by national middle and long distance coach Dr Nikolai Snesarev, finished higher than even Kenya's Monica Wangari who finished 10th in 2:42:12, just edging out Sudha Singh.
Lalita also cut 12 seconds from the time she had clocked last year while finishing as the leading Indian woman runner.
Snesarev said that Jaisha will run in the 5,000m and 10,000m at Beijing while Lalita would take part in the 5,000m and her pet event 3,000m steeplechase.
On the other hand, none of the Indian male runners could attain the AFI-set qualifying standard of 2:18.
While top Indian finisher Karan Singh, of Army Sports Institute, Pune, clocked 2:21:35 to finish 11th overall, his teammate Arjun Pradhan - who was the leading Indian runner till the last few kilometres - clocked 2:22:22 to finish 12th.
