Quartermiler Mohammad Anas and long jumper Ankit Singh booked their Olympic tickets with national record shattering efforts while 200m specialist Srabani Nanda also qualified for the Rio Games in various competitions aboard on a memorable day for Indian track and field athletes on Sunday.
Meanwhile, India's contingent now stands at 102, with archer Atanu Das also securing a Rio berth in men's recurve individual event.
Odisha athlete Srabani,24, who won gold in women's 200m race in the South Asian Games and Federation Cup earlier this year, clocked 23.07secs at the 26th G Kosanov Memorial Meet in Almaty, Kazakhstan to realise her Rio Olympics dreams.
The qualifying mark for the Olympics in women's 200m is 23.20secs.
Ankit Singh, 23, also smashed the existing national record with his best effort of 8.19m in men's long jump in the same Meet in Almaty to ensure his passage to Rio Games. The earlier national record of 8.09m was in the name of Kumaravel Prem Kumar set here in August 2013.
The qualification standard for the Olympics in men's long jump is 8.15 metres.
Haryana athlete Ankit had also won gold in the South Asian Games earlier this year and National Games last year.
Last night, quartermiler Mohammad Anas qualified for the Rio Olympics by shattering the men's 400m national record on the second day of Polish Athletics Championship at Bydgoszcz.
On the other hand, 21-year-old Anas clocked 45.40secs, the exact Rio qualification timing, to book the Olympics ticket.
The Kerala athlete shattered his own national record of 45.44secs, which he set on Friday on the first day of the same competition at this Polish city.
Rajiv Arokia, whose national record of 45.47secs Anas broke on Saturday, finished second with a timing of 45.60secs.
Anas had won a silver in the Federation Cup National Athletics Championships here in April with a timing of 45.74secs.
With the addition of these three, the number of track and field athletes who have qualified for Rio Olympics has swelled to 23.
Athletics is set to contribute the second biggest number of members in India's Rio Olympics contingent after hockey which will have 36 players (18 each for men's and women's team).
(With inputs from Suprita Das)