After being warned once for running on the pitch in the 13th over, Pakistani batters ran on the pitch twice again, resulting in a penalty of 5 runs on each of those two occasions.
Pakistan were soon reduced to 30-3 but India spilled five chances and Bismah Maroof (53) and Nida Dar (52) put on 93 within 12 overs to help them to 133-7.
Captain Harmanpreet Kaur on Friday became the first Indian woman to record a century in the shortest format, her scintillating 51-ball 103 powering the team to an imposing 194 for five in the ICC World T20 opener against New Zealand here.
Following an impressive opening day win against twice runners-up New Zealand, India, who have yet to reach a WT20 final, struck in the first over when Ayesha Zafar was well caught low at wide slip by Veda Krishnamurthy.
"It's unprofessional on our part because we were warned. It's important to bat and bowl well in the first 6 overs - we had some plans, I thought we did well with the ball today", Kaur said during the post-match presentation ceremony.
Women's cricket team captain Harmanpreet Kaur on Friday romped into history books as she became the first Indian to score a century in a Twenty20 worldwide. The skipper led by example after India were struggling at 40 for three.
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Notably, the 35-year-old senior campaigner did not get to bat against New Zealand but she replaced Tania Bhatia at the top of the order and showcased her experience.
Pakistan captain Javeria Khan sought answers from the umpires after her team's innings and admitted that her players had erred. "It's something we're going to have to learn from", she said. Rodrigues fell for 59 off 45 balls, with seven fours, but Kaur had enough time to bring up her hundred.
India will next lock horns with Ireland on November 15 at the same venue of Providence Stadium in Guyana.
Sana's off-day (0/32 in 4 overs) was one of the factors for Pakistan not being able to contain Australia during the initial overs.
Notably, India haven't made past the group stages in the last three editions of the tournament, with their best finish - a semi-final appearance - coming in 2009 and 2010.