Answer : 4. "102"
Explanation :

After the recent induction of 10 new Vande Bharat trains in Ahmedabad, a total of 102 Vande Bharat trains are now running across India, covering more than 250 districts of the country. Vande Bharat is an indigenously designed and manufactured semi high speed, self-propelled train. The country's first 'Vande Bharat Express' train was flagged off by PM Narendra Modi on the New Delhi - Kanpur - Allahabad - Varanasi route in February 2019.