NEW DELHI: The number of confirmed Covid-19 patients in India rose to 74 on Thursday with 57 Indians and 17 foreigners testing positive for the virus. The government maintained there is “no community transmission observed” so far, urging people to follow government advisories and not panic.“Luckily, in India, we do not have any community transmission. We have only a few cases that have come from outside and they have primarily affected their close family members,” Lav Aggarwal, Joint Secretary to the health ministry said.India has so far witnessed only local transmission of coronavirus infection where people with travel history have passed on the virus to others who have come in their contact. However, a further spread from such people to others in the community is considered more critical as it then becomes difficult to contain the transmission. Such transmissions – seen in various other countries – is known as community transmission.The government is working on war footing to tackle the spread of the virus, which has reached around 114 countries and infected over one lakh people. The World Health Organisation has also declared it as a global pandemic.Around 1500 people have been put under observation who came in contact with 74 positive cases tested so far, whereas over 30,000 people across the country were under community surveillance.In a precautionary move to prevent any further transmission of cases from abroad, the government on Wednesday suspended all visas for a month, except a few like diplomatic, UN organisations and employment visas.The government is also working to evacuate Indians stranded in various affected countries. While 948 people have been evacuated already and quarantined for 14 days to avoid any spread, around 130-150 Indian nationals are likely to be evacuated from Iran and brought back to India by Saturday, a senior official from the civil aviation ministry said.The government will undertake three such evacuations to bring back Indians stranded there.“The first evacuation from Iran will take place tomorrow and around 130-150 people are expected to reach Mumbai airport around 12.30 pm. The second evacuation will be on March 15 and the flight will arrive at Delhi airport. The third evacuation from Iran is likely to be on March 16 or 17,” the official said, adding on Tuesday, 58 evacuees from Iran had arrived in India, which included 25 men, 31 women and two children all of whom are asymptomatic at present.Aggarwal said 52 testing facilities are located across the country, and a total of 56 sample collection centres have been established. “We already have around 1 lakh testing kits available, additional testing kits have already been ordered and they are also in procurement,” he said.Moreover, 83 evacuees from Italy who arrived in India on Wednesday have been housed at the Manesar quarantine facility. All patients in hospitals are being treated and reported to be stable, officials said.The government has also stepped up vigil and following a strong contact tracing system to ensure anyone who has come in touch with the infected are not missed out. Till now, 11,14,025 people have been screened at 30 designated airports in India, according to the health ministry.Asked whether high temperature kills coronavirus, officials said there was no study or evidence till now to suggest that.